diff --git a/collects/2htdp/utest/ball2.ss b/collects/2htdp/utest/ball2.ss
index 5f70267bce..ff847b857b 100644
--- a/collects/2htdp/utest/ball2.ss
+++ b/collects/2htdp/utest/ball2.ss
@@ -25,4 +25,4 @@
 
 ;; --- 
 
-(universe2 create-universe switch-players)
+;; (universe2 create-universe switch-players)