diff --git a/shared/languages.json b/shared/languages.json
index 4321329..87cb7f3 100644
--- a/shared/languages.json
+++ b/shared/languages.json
@@ -41,7 +41,7 @@
     {
         "name": "crystal",
         "aliases": [
-            "crystal"
+            "crystal",
             "cr"
         ]
     },