diff --git a/LibreNMS/Alert/Transport/Pushbullet.php b/LibreNMS/Alert/Transport/Pushbullet.php
index e34d799282..fb62af7842 100644
--- a/LibreNMS/Alert/Transport/Pushbullet.php
+++ b/LibreNMS/Alert/Transport/Pushbullet.php
@@ -32,7 +32,7 @@ class Pushbullet extends Transport
         if (!empty($this->config)) {
             $opts = $this->config['pushbullet-token'];
         }
-        return contactPushbullet($obj, $opts);
+        return $this->contactPushbullet($obj, $opts);
     }
 
     public function contactPushbullet($obj, $opts)
diff --git a/LibreNMS/Interfaces/Alert/Transport.php b/LibreNMS/Interfaces/Alert/Transport.php
index aa0710f309..4eb1661023 100644
--- a/LibreNMS/Interfaces/Alert/Transport.php
+++ b/LibreNMS/Interfaces/Alert/Transport.php
@@ -32,7 +32,7 @@ interface Transport
      *
      * @param $alert_data array An array created by DescribeAlert
      * @param $opts array|true The options from $config['alert']['transports'][$transport]
-     * @return bool Returns if the call was successful
+     * @return mixed Returns if the call was successful
      */
     public function deliverAlert($alert_data, $opts);
 }