diff --git a/Headers/gnustep/gui/NSMenuView.h b/Headers/gnustep/gui/NSMenuView.h
index 2f2fcefb9..cb6588007 100644
--- a/Headers/gnustep/gui/NSMenuView.h
+++ b/Headers/gnustep/gui/NSMenuView.h
@@ -115,8 +115,4 @@
 - (BOOL)trackWithEvent:(NSEvent *)event;
 @end
 
-@interface NSMenuView (GNUstepExtension)
-- (void) _setCellSize: (NSSize)aSize;
-@end
-
 #endif