diff --git a/src/AST/TypeExtensions.cs b/src/AST/TypeExtensions.cs
index 9d7bfe45..f4691cf4 100644
--- a/src/AST/TypeExtensions.cs
+++ b/src/AST/TypeExtensions.cs
@@ -179,6 +179,10 @@
                     return replacement.Desugar();
             }
 
+            var attributedType = t as AttributedType;
+            if (attributedType != null)
+                return attributedType.Equivalent.Type.Desugar();
+
             return t;
         }
 
diff --git a/tests/CSharpTemp/CSharpTemp.h b/tests/CSharpTemp/CSharpTemp.h
index 690e61c4..91ff35f4 100644
--- a/tests/CSharpTemp/CSharpTemp.h
+++ b/tests/CSharpTemp/CSharpTemp.h
@@ -11,6 +11,7 @@ public:
     int& operator[](int i);
     int A;
     int* (*functionPtrReturnsPtrParam)();
+    int (__stdcall *attributedFunctionPtr)();
 
     static const int rename = 5;