diff --git a/rr b/rr
index 008b0bf..5abf752 100755
--- a/rr
+++ b/rr
@@ -1,5 +1,5 @@
 #!/bin/sh
-[ $# -eq 1 ] && echo "usage: $0 command ..." && exit 64
+[ $# -eq 0 ] && echo "usage: $0 command ..." && exit 64
 tmp1=$(mktemp $0.XXXXXXXXXX)
 tmp2=$(mktemp $0.XXXXXXXXXX)
 trap "rm $tmp1 $tmp2; exit 0" 1 2 15