diff --git a/mod/forum/user.php b/mod/forum/user.php
index 9b5003b6479..5922e55098a 100644
--- a/mod/forum/user.php
+++ b/mod/forum/user.php
@@ -219,6 +219,8 @@ if (empty($result->posts)) {
         $PAGE->set_heading($pageheading);
     } else if ($canviewuser) {
         $PAGE->set_heading(fullname($user));
+    } else {
+        $PAGE->set_heading($SITE->fullname);
     }
     echo $OUTPUT->header();
     if (!$isspecificcourse) {