diff --git a/tests/CSharpTemp/CSharpTemp.h b/tests/CSharpTemp/CSharpTemp.h
index 4d054af1..87711523 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)();
     bool isNoParams();
     void setNoParams();