diff --git a/config/locales/en.yml b/config/locales/en.yml
index d89f3fc13..e9fadb636 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -27,7 +27,7 @@ en:
   notice_account_deleted: "Your account has been permanently deleted."
   notice_user_successful_create: "User %{id} created."
 
-  error_attachment_empty:  "error in add file"
+  error_attachment_empty: "error in add file"
   error_class_period_only_num: "class period can only digital"
   error_can_t_load_default_data: "Default configuration could not be loaded: %{value}"
   error_scm_not_found: "The entry or revision was not found in the repository."
@@ -1656,8 +1656,8 @@ en:
   label_add_tag: Add Tag
 
   #api
-   label_recently_updated_notification: Recently updated notification
-   label_recently_updated_homework: Recently updated the homework
-   label_recently_updated_message: Recently updated the message
-   label_recently_updated_courseware: Recently updated the courseware
-   label_no_courses: You do not participate in any course, please search the curriculum, course, or create a course!
+  label_recently_updated_notification: Recently updated notification
+  label_recently_updated_homework: Recently updated the homework
+  label_recently_updated_message: Recently updated the message
+  label_recently_updated_courseware: Recently updated the courseware
+  label_no_courses: You do not participate in any course, please search the curriculum, course, or create a course!