diff --git a/nag/lib/Nag.php b/nag/lib/Nag.php
index 768acb9ed5d..bcce138620f 100644
--- a/nag/lib/Nag.php
+++ b/nag/lib/Nag.php
@@ -1825,7 +1825,7 @@ public static function sendITipNotifications(
 
         $email = Nag::getUserEmail($task->assignee);
         if (strpos($email, '@') === false) {
-            continue;
+            return;
         }
 
        /* Determine all notification-specific strings. */