diff --git a/mod/forum/subscribe.php b/mod/forum/subscribe.php
index 6cdc2f154b7..f722456f943 100644
--- a/mod/forum/subscribe.php
+++ b/mod/forum/subscribe.php
@@ -127,6 +127,7 @@ if (forum_is_forcesubscribed($forum)) {
     redirect($returnto, get_string("everyoneisnowsubscribed", "forum"), 1);
 }
 
+$info = new stdClass();
 $info->name  = fullname($user);
 $info->forum = format_string($forum->name);