diff --git a/wxPython/src/_sizers.i b/wxPython/src/_sizers.i
index bf8a3832e0..d85ecefb7a 100644
--- a/wxPython/src/_sizers.i
+++ b/wxPython/src/_sizers.i
@@ -836,6 +836,8 @@ subsizer.  Returns True if the item was found.", "");
                 return self->Show(info.sizer, show, recursive);
             else if ( info.gotPos )
                 return self->Show(info.pos, show);
+            else
+                return false;
         }
        
         DocAStr(IsShown,