diff --git a/tests/Model/Smbo/Transfer.php b/tests/Model/Smbo/Transfer.php
index 4da5a4eba8..39dcad6dd6 100644
--- a/tests/Model/Smbo/Transfer.php
+++ b/tests/Model/Smbo/Transfer.php
@@ -18,7 +18,7 @@ public function init(): void
 
         // only used to create / destroy trasfer legs
         if (!$this->detached) {
-            $this->addCondition('transfer_document_id', 'not', null);
+            $this->addCondition('transfer_document_id', 'is not', null);
         }
 
         $this->addField('destination_account_id', ['never_persist' => true]);