diff --git a/lib/uploadlib.php b/lib/uploadlib.php
index 7e6e2078c01..8182c6b7837 100644
--- a/lib/uploadlib.php
+++ b/lib/uploadlib.php
@@ -97,6 +97,7 @@ class upload_manager {
             $course = $SITE;
         }
 
+        $this->config = new stdClass();
         $this->config->deleteothers = $deleteothers;
         $this->config->handlecollisions = $handlecollisions;
         $this->config->recoverifmultiple = $recoverifmultiple;