diff --git a/package.json b/package.json
index d92d7c580..a3e01556c 100644
--- a/package.json
+++ b/package.json
@@ -165,7 +165,7 @@
     "webpack-bundle-analyzer": "^3.6.0",
     "webpack-cli": "^3.3.10",
     "webpack-merge": "^4.2.1",
-    "wicg-inert": "^3.0.0"
+    "wicg-inert": "^3.0.0",
     "what-input": "^4.3.1"
   },
   "devDependencies": {