diff --git a/config/locales/en.yml b/config/locales/en.yml
index 48692d9..89b3c52 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -33,6 +33,9 @@ en:
     file: Attachment
     file_description: File Description
     file_name: File Name
+    file_size: File Size
+    file_size_limit: File Size Limit
+    file_size_exceed_limitation: File Size Exceed Limitation
     frontend:
       bulletins: News front-end
       search_result: Search result