diff --git a/include/wx/defs.h b/include/wx/defs.h
index 22a407360f..74a646b985 100644
--- a/include/wx/defs.h
+++ b/include/wx/defs.h
@@ -1947,6 +1947,7 @@ typedef struct objc_object *WX_##klass
 DECLARE_WXCOCOA_OBJC_CLASS(NSApplication);
 DECLARE_WXCOCOA_OBJC_CLASS(NSBox);
 DECLARE_WXCOCOA_OBJC_CLASS(NSButton);
+DECLARE_WXCOCOA_OBJC_CLASS(NSColor);
 DECLARE_WXCOCOA_OBJC_CLASS(NSControl);
 DECLARE_WXCOCOA_OBJC_CLASS(NSEvent);
 DECLARE_WXCOCOA_OBJC_CLASS(NSLayoutManager);