diff --git a/pymlac/load.test b/pymlac/load.test
index d9ac036..a532e9b 100644
--- a/pymlac/load.test
+++ b/pymlac/load.test
@@ -1,2 +1,2 @@
 # test of loading simple code
-bootrom ptr; mount ptr simpledisplay.ptp; setreg pc 040; rununtil 017777
+bootrom ptr; mount ptr simpledisplay.ptp; setreg pc 040; rununtil 0; setreg pc 0100; rununtil 0