diff --git a/include/wx/any.h b/include/wx/any.h
index c021ce65c7..46d2ec61d9 100644
--- a/include/wx/any.h
+++ b/include/wx/any.h
@@ -34,6 +34,8 @@ union wxAnyValueBuffer
     wxInt64 m_int64;
 #endif
     double  m_double;
+    void    ( *m_funcPtr )(void);
+    void    ( wxAnyValueBuffer::*m_mFuncPtr )(void);
     wxByte  m_buffer[WX_ANY_VALUE_BUFFER_SIZE];
 };