diff --git a/scripts/s/sh b/scripts/s/sh
index c85258f..e78071b 100755
--- a/scripts/s/sh
+++ b/scripts/s/sh
@@ -30,8 +30,7 @@ fn cfg_get {
 }
 
 fn is_idle {
-	state=`{cfg_get state}
-	test $state = idle
+	~ `{cfg_get state} idle
 }
 
 fn usage {