diff --git a/wxPython/src/_button.i b/wxPython/src/_button.i
index d29dd2c2a3..9bdfd47ba8 100644
--- a/wxPython/src/_button.i
+++ b/wxPython/src/_button.i
@@ -163,7 +163,7 @@ The stock IDs and coresponding labels are
 
 
     DocDeclStr(
-        void , SetDefault(),
+        wxWindow* , SetDefault(),
         "This sets the button to be the default item for the panel or dialog box.", "");