diff --git a/config.json b/config.json
index 40ade4a5..64cbeedc 100644
--- a/config.json
+++ b/config.json
@@ -7,7 +7,7 @@
   "exercises": [
     {
       "uuid": "4756cfc9-7509-4783-8be7-60e3376b8256",
-      "slug": "hello-world",
+      "slug": "hello-worldy-do-da-do",
       "core": false,
       "unlocked_by": null,
       "difficulty": 1,