diff --git a/cube-scrambler.el b/cube-scrambler.el
index 225a467..8747424 100644
--- a/cube-scrambler.el
+++ b/cube-scrambler.el
@@ -41,7 +41,7 @@ generate a sequence that moves the same face twice in a row."
     (while (> moves 0)
       (setq last-face (cube-random-face last-face))
       (push (cube-random-turn last-face) result)
-      (setq moves (1- moves )))
+      (setq moves (1- moves)))
     result))
 
 (defun cube-random-face (&optional last-face)