diff --git a/config.json b/config.json
index 21ba9407..4c4aa578 100644
--- a/config.json
+++ b/config.json
@@ -147,7 +147,7 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 6
-      }, 
+      },
       {
         "slug": "darts",
         "name": "Darts",