diff --git a/src/locales/en.json b/src/locales/en.json
index b9eb8af..df6ff08 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -1,6 +1,7 @@
 {
   "message": {
     "hello": "hello world",
-    "greeting": "good morning, world!"
+    "greeting": "good morning, world!",
+    "not-used": "not used"
   }
 }