diff --git a/internal/gno/parser.go b/internal/gno/parser.go
index acd289c..c5dbd36 100644
--- a/internal/gno/parser.go
+++ b/internal/gno/parser.go
@@ -226,15 +226,13 @@ func function(n *ast.FuncDecl, source string) *Symbol {
 	} else {
 		kind = "func"
 	}
-	if n.Type.Results != nil && len(n.Type.Results.List) == 1 {
-		// Store retType only if there's only one
-		retType = n.Type.Results.List[0].Type.(*ast.Ident).Name
-	}
+	retType, params := typeFromNode(n.Type, source)
 	return &Symbol{
 		Name:      n.Name.Name,
 		Doc:       n.Doc.Text(),
 		Signature: strings.Split(source[n.Pos()-1:n.End()-1], " {")[0],
 		Kind:      kind,
+		Fields:    params,
 		Recv:      recv,
 		Type:      retType,
 	}
@@ -311,6 +309,13 @@ func typeFromNode(x ast.Node, source string) (string, []Symbol) {
 		return typeFromNode(x.X, source)
 	case *ast.StructType: // inline struct
 		return "", symbolsFromFieldList(x.Fields, source)
+	case *ast.FuncType:
+		var retType string
+		if x.Results != nil && len(x.Results.List) == 1 {
+			// Store retType only if there's only one
+			retType = x.Results.List[0].Type.(*ast.Ident).Name
+		}
+		return retType, symbolsFromFieldList(x.Params, source)
 	case *ast.InterfaceType:
 		return "", symbolsFromFieldList(x.Methods, source)
 	}
diff --git a/internal/gno/testdata/parsePackages-func.txtar b/internal/gno/testdata/parsePackages-func.txtar
index e8ca1c2..3a7f724 100644
--- a/internal/gno/testdata/parsePackages-func.txtar
+++ b/internal/gno/testdata/parsePackages-func.txtar
@@ -29,6 +29,27 @@ func i() x {
         "Name": "f",
         "Signature": "func f(x int, y interface{ Foo() int }) bool",
         "Kind": "func",
+        "Fields": [
+          {
+            "Name": "x",
+            "Signature": "x int",
+            "Kind": "field",
+            "Type": "int"
+          },
+          {
+            "Name": "y",
+            "Signature": "y interface{ Foo() int }",
+            "Kind": "field",
+            "Fields": [
+              {
+                "Name": "Foo",
+                "Signature": "Foo() int",
+                "Kind": "method",
+                "Type": "int"
+              }
+            ]
+          }
+        ],
         "Type": "bool"
       },
       {
diff --git a/internal/gno/testdata/parsePackages-interface.txtar b/internal/gno/testdata/parsePackages-interface.txtar
index 96bb0fd..576b803 100644
--- a/internal/gno/testdata/parsePackages-interface.txtar
+++ b/internal/gno/testdata/parsePackages-interface.txtar
@@ -69,6 +69,14 @@ var x interface{ Baz(int) bool }
             "Name": "Baz",
             "Signature": "Baz(int) bool",
             "Kind": "method",
+            "Fields": [
+              {
+                "Name": "int",
+                "Signature": "int",
+                "Kind": "field",
+                "Type": "int"
+              }
+            ],
             "Type": "bool"
           }
         ]
diff --git a/internal/gno/testdata/parsePackages-variable.txtar b/internal/gno/testdata/parsePackages-variable.txtar
index 96c02e9..b939014 100644
--- a/internal/gno/testdata/parsePackages-variable.txtar
+++ b/internal/gno/testdata/parsePackages-variable.txtar
@@ -12,7 +12,7 @@ type MyType struct {
 	d int
 }
 
-func (MyType) F(int) bool { return false }
+func (MyType) F(i int) bool { return false }
 
 func (o *otherType) f(int) bool { return false }
 
@@ -70,9 +70,17 @@ func Hello() {
           },
           {
             "Name": "F",
-            "Signature": "func (MyType) F(int) bool",
+            "Signature": "func (MyType) F(i int) bool",
             "Kind": "method",
             "Recv": "MyType",
+            "Fields": [
+              {
+                "Name": "i",
+                "Signature": "i int",
+                "Kind": "field",
+                "Type": "int"
+              }
+            ],
             "Type": "bool"
           }
         ]
@@ -93,6 +101,14 @@ func Hello() {
             "Signature": "func (o *otherType) f(int) bool",
             "Kind": "method",
             "Recv": "otherType",
+            "Fields": [
+              {
+                "Name": "int",
+                "Signature": "int",
+                "Kind": "field",
+                "Type": "int"
+              }
+            ],
             "Type": "bool"
           }
         ]