diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index 9d36df441fd..2b2a329e2b5 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -542,7 +542,9 @@ class PostsController < ApplicationController
         post_revision.modifications["category_id"][0] != topic.category.id
     end
     return render_json_error(I18n.t("revert_version_same")) unless changes.length > 0
-    changes[:edit_reason] = "reverted to version ##{post_revision.number.to_i - 1}"
+    changes[:edit_reason] = I18n.with_locale(SiteSetting.default_locale) do
+      I18n.t("reverted_to_version", version: post_revision.number.to_i - 1)
+    end
 
     revisor = PostRevisor.new(post, topic)
     revisor.revise!(current_user, changes)
diff --git a/config/locales/server.en.yml b/config/locales/server.en.yml
index 7702d217ff9..7698cb22968 100644
--- a/config/locales/server.en.yml
+++ b/config/locales/server.en.yml
@@ -432,6 +432,7 @@ en:
   too_late_to_edit: "That post was created too long ago. It can no longer be edited or deleted."
   edit_conflict: "That post was edited by another user and your changes can no longer be saved."
   revert_version_same: "The current version is same as the version you are trying to revert to."
+  reverted_to_version: "reverted to version #%{version}"
   cannot_edit_on_slow_mode: "This topic is in slow mode. To encourage thoughtful, considered discussion, editing old posts in this topic is not currently allowed during slow mode."
 
   excerpt_image: "image"