diff --git a/src/Generator/Generators/CSharp/CSharpMarshal.cs b/src/Generator/Generators/CSharp/CSharpMarshal.cs
index 24406c14..aaa450da 100644
--- a/src/Generator/Generators/CSharp/CSharpMarshal.cs
+++ b/src/Generator/Generators/CSharp/CSharpMarshal.cs
@@ -494,7 +494,8 @@ namespace CppSharp.Generators.CSharp
             if (!VisitType(pointer, quals))
                 return false;
 
-            if (Context.Function != null && pointer.IsPrimitiveTypeConvertibleToRef())
+            if (Context.Function != null && pointer.IsPrimitiveTypeConvertibleToRef() &&
+                Context.Kind != CSharpMarshalKind.VTableReturnValue)
             {
                 var refParamPtr = string.Format("__refParamPtr{0}", Context.ParameterIndex);
                 Context.SupportBefore.WriteLine("fixed ({0} {1} = &{2})",
diff --git a/tests/Common/Common.h b/tests/Common/Common.h
index 1608eaca..5e8f4a04 100644
--- a/tests/Common/Common.h
+++ b/tests/Common/Common.h
@@ -36,7 +36,7 @@ public:
     class NestedAbstract
     {
     public:
-        virtual void abstractFunctionInNestedClass() = 0;
+        virtual int* abstractFunctionInNestedClass() = 0;
     };
 
     Foo();