diff --git a/bin/9.rc b/bin/9.rc
index 354976d3..8a6cea9b 100755
--- a/bin/9.rc
+++ b/bin/9.rc
@@ -5,4 +5,4 @@ if(~ $#PLAN9 0)
 if(! ~ $path(1) $PLAN9/bin)
 	path=($PLAN9/bin $path)
 
-! ~ $#* 0 && exec $*
+~ $#* 0 || exec $*