diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad6abfdc2..27f550a39 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 - Add support to any keyword for function return type to AutoMockable.stencil([#1186](https://github.com/krzysztofzablocki/Sourcery/pull/1186))
 - Add support for protocol compositions in EJS templates. ([#1192](https://github.com/krzysztofzablocki/Sourcery/pull/1192))
 - Linux Support (experimental) ([#1188](https://github.com/krzysztofzablocki/Sourcery/pull/1188))
+- Add support for opaque type (some keyword) to function parameter type in AutoMockable.stencil ([#1197](https://github.com/krzysztofzablocki/Sourcery/pull/1197))
 
 ## 2.0.3
 ## Internal Changes
diff --git a/Templates/Templates/AutoMockable.stencil b/Templates/Templates/AutoMockable.stencil
index b795c4b15..8640a96e2 100755
--- a/Templates/Templates/AutoMockable.stencil
+++ b/Templates/Templates/AutoMockable.stencil
@@ -202,9 +202,9 @@ import {{ import }}
 
 {% macro underlyingMockedVariableName variable %}underlying{{ variable.name|upperFirstLetter }}{% endmacro %}
 {% macro mockedVariableName variable %}{{ variable.name }}{% endmacro %}
-{% macro existentialVariableTypeName typeName %}{% if typeName|contains:"any" and typeName|contains:"!" %}{{ typeName | replace:"any","(any" | replace:"!",")!" }}{% elif typeName|contains:"any" and typeName.isOptional %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"any" and typeName.isClosure and typeName|contains:"?"%}({{ typeName | replace:"any","(any" | replace:"?",")?" }}){%else%}{{ typeName }}{%endif%}{% endmacro %}
-{% macro existentialClosureVariableTypeName typeName %}{% if typeName|contains:"any" and typeName|contains:"!" %}{{ typeName | replace:"any","(any" | replace:"!",")?" }}{% elif typeName|contains:"any" and typeName.isClosure and typeName|contains:"?" %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"any" and typeName|contains:"?" %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{%else%}{{ typeName }}{%endif%}{% endmacro %}
-{% macro existentialParameterTypeName typeName %}{% if typeName|contains:"any" and typeName|contains:"!" %}{{ typeName | replace:"any","(any" | replace:"!",")!" }}{% elif typeName|contains:"any" and typeName.isClosure and typeName|contains:"?" %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"any" and typeName.isOptional %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{%else%}{{ typeName }}{%endif%}{% endmacro %}
+{% macro existentialVariableTypeName typeName %}{% if typeName|contains:"any " and typeName|contains:"!" %}{{ typeName | replace:"any","(any" | replace:"!",")!" }}{% elif typeName|contains:"any " and typeName.isOptional %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"any " and typeName.isClosure and typeName|contains:"?"%}({{ typeName | replace:"any","(any" | replace:"?",")?" }}){% elif typeName|contains:"some " and typeName|contains:"!" %}{{ typeName | replace:"some","(some" | replace:"!",")!" }}{% elif typeName|contains:"some " and typeName.isOptional %}{{ typeName | replace:"some","(some" | replace:"?",")?" }}{% elif typeName|contains:"some " and typeName.isClosure and typeName|contains:"?"%}({{ typeName | replace:"some","(some" | replace:"?",")?" }}){%else%}{{ typeName }}{%endif%}{% endmacro %}
+{% macro existentialClosureVariableTypeName typeName %}{% if typeName|contains:"any " and typeName|contains:"!" %}{{ typeName | replace:"any","(any" | replace:"!",")?" }}{% elif typeName|contains:"any " and typeName.isClosure and typeName|contains:"?" %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"any " and typeName|contains:"?" %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"some " and typeName|contains:"!" %}{{ typeName | replace:"some","(any" | replace:"!",")?" }}{% elif typeName|contains:"some " and typeName.isClosure and typeName|contains:"?" %}{{ typeName | replace:"some","(any" | replace:"?",")?" }}{% elif typeName|contains:"some " and typeName|contains:"?" %}{{ typeName | replace:"some","(any" | replace:"?",")?" }}{%else%}{{ typeName|replace:"some ","any " }}{%endif%}{% endmacro %}
+{% macro existentialParameterTypeName typeName %}{% if typeName|contains:"any " and typeName|contains:"!" %}{{ typeName | replace:"any","(any" | replace:"!",")!" }}{% elif typeName|contains:"any " and typeName.isClosure and typeName|contains:"?" %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"any " and typeName.isOptional %}{{ typeName | replace:"any","(any" | replace:"?",")?" }}{% elif typeName|contains:"some " and typeName|contains:"!" %}{{ typeName | replace:"some","(some" | replace:"!",")!" }}{% elif typeName|contains:"some " and typeName.isClosure and typeName|contains:"?" %}{{ typeName | replace:"some","(some" | replace:"?",")?" }}{% elif typeName|contains:"some " and typeName.isOptional %}{{ typeName | replace:"some","(some" | replace:"?",")?" }}{%else%}{{ typeName }}{%endif%}{% endmacro %}
 {% macro methodName method %}func {{ method.shortName}}({%- for param in method.parameters %}{% if param.argumentLabel == nil %}_ {{ param.name }}{%elif param.argumentLabel == param.name%}{{ param.name }}{%else%}{{ param.argumentLabel }} {{ param.name }}{% endif %}: {% call existentialParameterTypeName param.typeName %}{% if not forloop.last %}, {% endif %}{% endfor -%}){% endmacro %}
 
 {% for type in types.protocols where type.based.AutoMockable or type|annotated:"AutoMockable" %}{% if type.name != "AutoMockable" %}
diff --git a/Templates/Tests/Context/AutoMockable.swift b/Templates/Tests/Context/AutoMockable.swift
index 6e97c121d..0bb6c76c9 100644
--- a/Templates/Tests/Context/AutoMockable.swift
+++ b/Templates/Tests/Context/AutoMockable.swift
@@ -182,3 +182,13 @@ protocol AnyProtocol: AutoMockable {
     func y() -> (any StubProtocol, (any StubProtocol)?)
     func z() -> any StubProtocol & CustomStringConvertible
 }
+
+protocol StubWithSomeNameProtocol {}
+
+protocol SomeProtocol: AutoMockable {
+    func a(_ x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol)
+    func b(x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol) async -> String
+    func someConfusingFuncName(x: some StubProtocol)
+    func c(someConfusingArgumentName: some StubProtocol)
+    func d(_ x: (some StubWithSomeNameProtocol)?)
+}
diff --git a/Templates/Tests/Context_Linux/AutoMockable.swift b/Templates/Tests/Context_Linux/AutoMockable.swift
index 6e97c121d..0bb6c76c9 100644
--- a/Templates/Tests/Context_Linux/AutoMockable.swift
+++ b/Templates/Tests/Context_Linux/AutoMockable.swift
@@ -182,3 +182,13 @@ protocol AnyProtocol: AutoMockable {
     func y() -> (any StubProtocol, (any StubProtocol)?)
     func z() -> any StubProtocol & CustomStringConvertible
 }
+
+protocol StubWithSomeNameProtocol {}
+
+protocol SomeProtocol: AutoMockable {
+    func a(_ x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol)
+    func b(x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol) async -> String
+    func someConfusingFuncName(x: some StubProtocol)
+    func c(someConfusingArgumentName: some StubProtocol)
+    func d(_ x: (some StubWithSomeNameProtocol)?)
+}
diff --git a/Templates/Tests/Expected/AutoMockable.expected b/Templates/Tests/Expected/AutoMockable.expected
index e771308c2..67fa3c22c 100644
--- a/Templates/Tests/Expected/AutoMockable.expected
+++ b/Templates/Tests/Expected/AutoMockable.expected
@@ -1041,6 +1041,102 @@ class SingleOptionalParameterFunctionMock: SingleOptionalParameterFunction {
         sendMessageClosure?(message)
     }
 
+}
+class SomeProtocolMock: SomeProtocol {
+
+
+
+
+    //MARK: - a
+
+    var ayzCallsCount = 0
+    var ayzCalled: Bool {
+        return ayzCallsCount > 0
+    }
+    var ayzReceivedArguments: (x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)?
+    var ayzReceivedInvocations: [(x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)] = []
+    var ayzClosure: (((any StubProtocol)?, (any StubProtocol)?, any StubProtocol) -> Void)?
+
+    func a(_ x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol) {
+        ayzCallsCount += 1
+        ayzReceivedArguments = (x: x, y: y, z: z)
+        ayzReceivedInvocations.append((x: x, y: y, z: z))
+        ayzClosure?(x, y, z)
+    }
+
+    //MARK: - b
+
+    var bxyzCallsCount = 0
+    var bxyzCalled: Bool {
+        return bxyzCallsCount > 0
+    }
+    var bxyzReceivedArguments: (x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)?
+    var bxyzReceivedInvocations: [(x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)] = []
+    var bxyzReturnValue: String!
+    var bxyzClosure: (((any StubProtocol)?, (any StubProtocol)?, any StubProtocol) async -> String)?
+
+    func b(x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol) async -> String {
+        bxyzCallsCount += 1
+        bxyzReceivedArguments = (x: x, y: y, z: z)
+        bxyzReceivedInvocations.append((x: x, y: y, z: z))
+        if let bxyzClosure = bxyzClosure {
+            return await bxyzClosure(x, y, z)
+        } else {
+            return bxyzReturnValue
+        }
+    }
+
+    //MARK: - someConfusingFuncName
+
+    var someConfusingFuncNameXCallsCount = 0
+    var someConfusingFuncNameXCalled: Bool {
+        return someConfusingFuncNameXCallsCount > 0
+    }
+    var someConfusingFuncNameXReceivedX: (any StubProtocol)?
+    var someConfusingFuncNameXReceivedInvocations: [(any StubProtocol)] = []
+    var someConfusingFuncNameXClosure: ((any StubProtocol) -> Void)?
+
+    func someConfusingFuncName(x: some StubProtocol) {
+        someConfusingFuncNameXCallsCount += 1
+        someConfusingFuncNameXReceivedX = x
+        someConfusingFuncNameXReceivedInvocations.append(x)
+        someConfusingFuncNameXClosure?(x)
+    }
+
+    //MARK: - c
+
+    var cSomeConfusingArgumentNameCallsCount = 0
+    var cSomeConfusingArgumentNameCalled: Bool {
+        return cSomeConfusingArgumentNameCallsCount > 0
+    }
+    var cSomeConfusingArgumentNameReceivedSomeConfusingArgumentName: (any StubProtocol)?
+    var cSomeConfusingArgumentNameReceivedInvocations: [(any StubProtocol)] = []
+    var cSomeConfusingArgumentNameClosure: ((any StubProtocol) -> Void)?
+
+    func c(someConfusingArgumentName: some StubProtocol) {
+        cSomeConfusingArgumentNameCallsCount += 1
+        cSomeConfusingArgumentNameReceivedSomeConfusingArgumentName = someConfusingArgumentName
+        cSomeConfusingArgumentNameReceivedInvocations.append(someConfusingArgumentName)
+        cSomeConfusingArgumentNameClosure?(someConfusingArgumentName)
+    }
+
+    //MARK: - d
+
+    var dCallsCount = 0
+    var dCalled: Bool {
+        return dCallsCount > 0
+    }
+    var dReceivedX: (any StubWithSomeNameProtocol)?
+    var dReceivedInvocations: [(any StubWithSomeNameProtocol)?] = []
+    var dClosure: (((any StubWithSomeNameProtocol)?) -> Void)?
+
+    func d(_ x: (some StubWithSomeNameProtocol)?) {
+        dCallsCount += 1
+        dReceivedX = x
+        dReceivedInvocations.append(x)
+        dClosure?(x)
+    }
+
 }
 class StaticMethodProtocolMock: StaticMethodProtocol {
 
diff --git a/Templates/Tests/Generated/AutoMockable.generated.swift b/Templates/Tests/Generated/AutoMockable.generated.swift
index 1b272044c..6525ccb28 100644
--- a/Templates/Tests/Generated/AutoMockable.generated.swift
+++ b/Templates/Tests/Generated/AutoMockable.generated.swift
@@ -1064,6 +1064,102 @@ class SingleOptionalParameterFunctionMock: SingleOptionalParameterFunction {
         sendMessageClosure?(message)
     }
 
+}
+class SomeProtocolMock: SomeProtocol {
+
+
+
+
+    //MARK: - a
+
+    var ayzCallsCount = 0
+    var ayzCalled: Bool {
+        return ayzCallsCount > 0
+    }
+    var ayzReceivedArguments: (x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)?
+    var ayzReceivedInvocations: [(x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)] = []
+    var ayzClosure: (((any StubProtocol)?, (any StubProtocol)?, any StubProtocol) -> Void)?
+
+    func a(_ x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol) {
+        ayzCallsCount += 1
+        ayzReceivedArguments = (x: x, y: y, z: z)
+        ayzReceivedInvocations.append((x: x, y: y, z: z))
+        ayzClosure?(x, y, z)
+    }
+
+    //MARK: - b
+
+    var bxyzCallsCount = 0
+    var bxyzCalled: Bool {
+        return bxyzCallsCount > 0
+    }
+    var bxyzReceivedArguments: (x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)?
+    var bxyzReceivedInvocations: [(x: (any StubProtocol)?, y: (any StubProtocol)?, z: any StubProtocol)] = []
+    var bxyzReturnValue: String!
+    var bxyzClosure: (((any StubProtocol)?, (any StubProtocol)?, any StubProtocol) async -> String)?
+
+    func b(x: (some StubProtocol)?, y: (some StubProtocol)!, z: some StubProtocol) async -> String {
+        bxyzCallsCount += 1
+        bxyzReceivedArguments = (x: x, y: y, z: z)
+        bxyzReceivedInvocations.append((x: x, y: y, z: z))
+        if let bxyzClosure = bxyzClosure {
+            return await bxyzClosure(x, y, z)
+        } else {
+            return bxyzReturnValue
+        }
+    }
+
+    //MARK: - someConfusingFuncName
+
+    var someConfusingFuncNameXCallsCount = 0
+    var someConfusingFuncNameXCalled: Bool {
+        return someConfusingFuncNameXCallsCount > 0
+    }
+    var someConfusingFuncNameXReceivedX: (any StubProtocol)?
+    var someConfusingFuncNameXReceivedInvocations: [(any StubProtocol)] = []
+    var someConfusingFuncNameXClosure: ((any StubProtocol) -> Void)?
+
+    func someConfusingFuncName(x: some StubProtocol) {
+        someConfusingFuncNameXCallsCount += 1
+        someConfusingFuncNameXReceivedX = x
+        someConfusingFuncNameXReceivedInvocations.append(x)
+        someConfusingFuncNameXClosure?(x)
+    }
+
+    //MARK: - c
+
+    var cSomeConfusingArgumentNameCallsCount = 0
+    var cSomeConfusingArgumentNameCalled: Bool {
+        return cSomeConfusingArgumentNameCallsCount > 0
+    }
+    var cSomeConfusingArgumentNameReceivedSomeConfusingArgumentName: (any StubProtocol)?
+    var cSomeConfusingArgumentNameReceivedInvocations: [(any StubProtocol)] = []
+    var cSomeConfusingArgumentNameClosure: ((any StubProtocol) -> Void)?
+
+    func c(someConfusingArgumentName: some StubProtocol) {
+        cSomeConfusingArgumentNameCallsCount += 1
+        cSomeConfusingArgumentNameReceivedSomeConfusingArgumentName = someConfusingArgumentName
+        cSomeConfusingArgumentNameReceivedInvocations.append(someConfusingArgumentName)
+        cSomeConfusingArgumentNameClosure?(someConfusingArgumentName)
+    }
+
+    //MARK: - d
+
+    var dCallsCount = 0
+    var dCalled: Bool {
+        return dCallsCount > 0
+    }
+    var dReceivedX: (any StubWithSomeNameProtocol)?
+    var dReceivedInvocations: [(any StubWithSomeNameProtocol)?] = []
+    var dClosure: (((any StubWithSomeNameProtocol)?) -> Void)?
+
+    func d(_ x: (some StubWithSomeNameProtocol)?) {
+        dCallsCount += 1
+        dReceivedX = x
+        dReceivedInvocations.append(x)
+        dClosure?(x)
+    }
+
 }
 class StaticMethodProtocolMock: StaticMethodProtocol {