diff --git a/collects/mred/private/wx/cocoa/menu-bar.rkt b/collects/mred/private/wx/cocoa/menu-bar.rkt
index 3bf8f0f8dd..208be17b40 100644
--- a/collects/mred/private/wx/cocoa/menu-bar.rkt
+++ b/collects/mred/private/wx/cocoa/menu-bar.rkt
@@ -83,8 +83,11 @@
         (and (<= x (NSPoint-x p) (+ x w))
              (<= (- y h) (NSPoint-y p) y)))))))
 
-(define (get-menu-bar-height)
+
+(define initial-menubar-height 
   (inexact->exact (floor (tell #:type _CGFloat cocoa-mb menuBarHeight))))
+(define (get-menu-bar-height)
+  initial-menubar-height)
 
 (set-menu-bar-hooks! in-menu-bar-range)