diff --git a/collects/framework/private/keymap.ss b/collects/framework/private/keymap.ss
index f11991b7..80c7ed89 100644
--- a/collects/framework/private/keymap.ss
+++ b/collects/framework/private/keymap.ss
@@ -968,6 +968,7 @@
 	      (map "a:v" "paste-clipboard")
 	      (map "d:v" "paste-clipboard")
 	      (map "c:_" "undo")
+	      (map (format "~a" (integer->char 31)) "undo") ; for Windows - strange
 	      (map "c:+" "redo")
 	      (map "a:z" "undo")
 	      (map "d:z" "undo")