diff --git a/locales/en-US.yml b/locales/en-US.yml
index 791ac4776b..335fddf405 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -411,6 +411,7 @@ desktop:
   uploading-avatar: "Uploading a new avatar"
   avatar-updated: "Successfully updated the avatar"
   choose-avatar: "Select an image for the avatar"
+  invalid-filetype: "この形式のファイルはサポートされていません"
 desktop/views/components/activity.chart.vue:
   total: "Black ... Total"
   notes: "Blue ... Notes"