diff --git a/src/Worker/RemoveContact.php b/src/Worker/RemoveContact.php
index 01388516bc..b07661b7a9 100644
--- a/src/Worker/RemoveContact.php
+++ b/src/Worker/RemoveContact.php
@@ -6,6 +6,7 @@
 namespace Friendica\Worker;
 
 use Friendica\Database\DBA;
+use Friendica\Core\Protocol;
 
 require_once 'include/dba.php';