diff --git a/wxPython/src/_dataobj.i b/wxPython/src/_dataobj.i
index 60b4a88421..c93fe8b8d4 100644
--- a/wxPython/src/_dataobj.i
+++ b/wxPython/src/_dataobj.i
@@ -57,8 +57,8 @@ public:
 
     %nokwargs operator==;
     %nokwargs operator!=;
-    bool operator==(int /*wxDataFormatId*/ format) const;
-    bool operator!=(int /*wxDataFormatId*/ format) const;
+    bool operator==(wxDataFormatId format) const;
+    bool operator!=(wxDataFormatId format) const;
     bool operator==(const wxDataFormat& format) const;
     bool operator!=(const wxDataFormat& format) const;