diff --git a/examples/with-mobx/package.json b/examples/with-mobx/package.json
index dbf469f1..c4bd737c 100644
--- a/examples/with-mobx/package.json
+++ b/examples/with-mobx/package.json
@@ -16,6 +16,6 @@
   "license": "ISC",
   "devDependencies": {
     "@babel/plugin-proposal-class-properties": "^7.1.0",
-    "@babel/plugin-proposal-decorators": "^7.1.0",
+    "@babel/plugin-proposal-decorators": "^7.1.0"
   }
 }