diff --git a/airtime_mvc/application/cloud_storage/ProxyStorageBackend.php b/airtime_mvc/application/cloud_storage/ProxyStorageBackend.php
index bae3808d9..7843f9868 100644
--- a/airtime_mvc/application/cloud_storage/ProxyStorageBackend.php
+++ b/airtime_mvc/application/cloud_storage/ProxyStorageBackend.php
@@ -60,6 +60,6 @@ class ProxyStorageBackend extends StorageBackend
 
     public function getFilePrefix()
     {
-        $this->storageBackend->getFilePrefix();
+        return $this->storageBackend->getFilePrefix();
     }
 }