diff --git a/include/wx/power.h b/include/wx/power.h
index ccddf1bba5..eba94b9dbd 100644
--- a/include/wx/power.h
+++ b/include/wx/power.h
@@ -69,7 +69,7 @@ public:
 private:
     bool m_veto;
 
-    wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxPowerEvent);
+    wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN_DEF_COPY(wxPowerEvent);
 };
 
 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPENDING, wxPowerEvent );