diff --git a/scripts/config b/scripts/config
index 8c8d7c3d7acc..ff88e2faefd3 100755
--- a/scripts/config
+++ b/scripts/config
@@ -223,6 +223,7 @@ while [ "$1" != "" ] ; do
 		;;
 
 	*)
+		echo "bad command: $CMD" >&2
 		usage
 		;;
 	esac