diff --git a/workflow/engine/classes/Derivation.php b/workflow/engine/classes/Derivation.php
index 32fa1342d..bf21cde34 100644
--- a/workflow/engine/classes/Derivation.php
+++ b/workflow/engine/classes/Derivation.php
@@ -2,6 +2,7 @@
 
 use Illuminate\Support\Facades\Log;
 use ProcessMaker\Model\Application as ModelApplication;
+use ProcessMaker\Model\Delegation;
 use ProcessMaker\Model\SubApplication as ModelSubApplication;
 
 class Derivation