diff --git a/rule_packages/c/DeadCode.json b/rule_packages/c/DeadCode.json
index fbcdfe2976..d8e80d14d1 100644
--- a/rule_packages/c/DeadCode.json
+++ b/rule_packages/c/DeadCode.json
@@ -39,7 +39,7 @@
           "short_name": "DeadCode",
           "tags": [
             "readability",
-            "maintainability"
+            "maintainability",
             "external/misra/c/2012/third-edition-first-revision"
           ]
         }