diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 3c43b86280..08114f0d5f 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -1858,6 +1858,7 @@ pulls.desc = Enable pull requests and code reviews.
 pulls.new = New Pull Request
 pulls.new.blocked_user = Cannot create pull request because you are blocked by the repository owner.
 pulls.new.must_collaborator = You must be a collaborator to create pull request.
+pulls.new.already_existed = A pull request between these branches already exists
 pulls.edit.already_changed = Unable to save changes to the pull request. It appears the content has already been changed by another user. Please refresh the page and try editing again to avoid overwriting their changes.
 pulls.view = View Pull Request
 pulls.compare_changes = New Pull Request