diff --git a/src/testing/mockMessages.js b/src/testing/mockMessages.js
index 12c89aa0a..28ba7a1da 100644
--- a/src/testing/mockMessages.js
+++ b/src/testing/mockMessages.js
@@ -18,6 +18,7 @@ const messages = {
   ru: {},
   th: {},
   uk: {},
+  vi: {},
 };
 
 export default messages;