diff --git a/tools/cleanup-images b/tools/cleanup-images
index 5d2c30f2ae..1a89673173 100755
--- a/tools/cleanup-images
+++ b/tools/cleanup-images
@@ -68,8 +68,9 @@ case "$1" in
             ;;
 
     (--)
-            shift
-            break
+            echo -e "Error: no argument passed\n"
+            usage
+            exit 0
             ;;
 
 esac