diff --git a/extensions/lock/js/forum/src/main.js b/extensions/lock/js/forum/src/main.js
index f0e63d88e..5f34e5262 100644
--- a/extensions/lock/js/forum/src/main.js
+++ b/extensions/lock/js/forum/src/main.js
@@ -21,7 +21,7 @@ addLockControl();
 extend(NotificationGrid.prototype, 'notificationTypes', function(items) {
   items.add('discussionLocked', {
     name: 'discussionLocked',
-    icon: 'thumb-tack',
+    icon: 'lock',
     label: app.trans('lock.notify_discussion_locked')
   });
 });
diff --git a/extensions/lock/src/Notifications/DiscussionLockedBlueprint.php b/extensions/lock/src/Notifications/DiscussionLockedBlueprint.php
index 405415c40..4a7b7f40d 100644
--- a/extensions/lock/src/Notifications/DiscussionLockedBlueprint.php
+++ b/extensions/lock/src/Notifications/DiscussionLockedBlueprint.php
@@ -1,6 +1,6 @@
 <?php namespace Flarum\Lock\Notifications;
 
-use Flarum\Sticky\Posts\DiscussionLockedPost;
+use Flarum\Lock\Posts\DiscussionLockedPost;
 use Flarum\Core\Notifications\Blueprint;
 
 class DiscussionLockedBlueprint implements Blueprint