diff --git a/extra/ui/cocoa/cocoa.factor b/extra/ui/cocoa/cocoa.factor
index 0db38e5eca..b0653ffa39 100755
--- a/extra/ui/cocoa/cocoa.factor
+++ b/extra/ui/cocoa/cocoa.factor
@@ -110,7 +110,6 @@ M: cocoa-ui-backend ui
     "UI" assert.app [
         [
             init-clipboard
-            stop-after-last-window? off
             cocoa-init-hook get [ call ] when*
             start-ui
             finish-launching