diff --git a/tests/any/anytest.cpp b/tests/any/anytest.cpp
index d44e509ef5..2503386fed 100644
--- a/tests/any/anytest.cpp
+++ b/tests/any/anytest.cpp
@@ -666,7 +666,7 @@ public:
 
     virtual bool ConvertValue(const wxAnyValueBuffer& src,
                               wxAnyValueType* dstType,
-                              wxAnyValueBuffer& dst) const
+                              wxAnyValueBuffer& dst) const wxOVERRIDE
     {
         MyClass value = GetValue(src);