diff --git a/src/mred/wrap/mred.ss b/src/mred/wrap/mred.ss
index 493d7dba..53a204b0 100644
--- a/src/mred/wrap/mred.ss
+++ b/src/mred/wrap/mred.ss
@@ -2269,7 +2269,7 @@
   (class (wx-make-pane% wx:windowless-panel% #f) (mred proxy parent style)
 	 (override
 	   [init-min (lambda (x) (if (eq? (system-type) 'macos)
-				     16
+				     15
 				     0))])
 	 (sequence
 	   (super-init mred proxy parent style))))