diff --git src/includes/core/actions.php src/includes/core/actions.php
index 18fa0bb..608b5e3 100644
--- src/includes/core/actions.php
+++ src/includes/core/actions.php
@@ -229,7 +229,7 @@ add_action( 'bbp_trash_topic',  'bbp_remove_topic_from_all_subscriptions'
 add_action( 'bbp_delete_topic', 'bbp_remove_topic_from_all_subscriptions'       );
 add_action( 'bbp_trash_forum',  'bbp_remove_forum_from_all_subscriptions'       );
 add_action( 'bbp_delete_forum', 'bbp_remove_forum_from_all_subscriptions'       );
-add_action( 'bbp_new_reply',    'bbp_notify_subscribers',                 11, 5 );
+add_action( 'bbp_new_reply',    'bbp_notify_topic_subscribers',           11, 5 );
 add_action( 'bbp_new_topic',    'bbp_notify_forum_subscribers',           11, 4 );
 
 // Sticky