diff --git a/include/wx/defs.h b/include/wx/defs.h
index 3133167dfe..1cef9f416b 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -1910,6 +1910,7 @@ DECLARE_WXCOCOA_OBJC_CLASS(NSApplication);
 DECLARE_WXCOCOA_OBJC_CLASS(NSBox);
 DECLARE_WXCOCOA_OBJC_CLASS(NSButton);
 DECLARE_WXCOCOA_OBJC_CLASS(NSControl);
+DECLARE_WXCOCOA_OBJC_CLASS(NSEvent);
 DECLARE_WXCOCOA_OBJC_CLASS(NSLayoutManager);
 DECLARE_WXCOCOA_OBJC_CLASS(NSMenu);
 DECLARE_WXCOCOA_OBJC_CLASS(NSMenuItem);