diff --git a/tests/functional/syntax/test_external_calls.py b/tests/functional/syntax/test_external_calls.py
index 79f3f6db93..a8fb5ae87b 100644
--- a/tests/functional/syntax/test_external_calls.py
+++ b/tests/functional/syntax/test_external_calls.py
@@ -305,7 +305,7 @@ def bar():
     extcall Foo(msg.sender)
     """,
         StructureException,
-        "Function `type(interface Foo)` cannot be called without assigning the result",
+        "Function `type(Foo)` cannot be called without assigning the result",
         None,
     ),
 ]
diff --git a/vyper/semantics/types/module.py b/vyper/semantics/types/module.py
index 60eb93bcac..ba72842c65 100644
--- a/vyper/semantics/types/module.py
+++ b/vyper/semantics/types/module.py
@@ -76,6 +76,9 @@ def getter_signature(self):
     def abi_type(self) -> ABIType:
         return ABI_Address()
 
+    def __str__(self):
+        return self._id
+
     def __repr__(self):
         return f"interface {self._id}"