diff --git a/app/Factory/TransactionGroupFactory.php b/app/Factory/TransactionGroupFactory.php
index bb69039030..3fa3163358 100644
--- a/app/Factory/TransactionGroupFactory.php
+++ b/app/Factory/TransactionGroupFactory.php
@@ -58,7 +58,7 @@ class TransactionGroupFactory
     public function create(array $data): TransactionGroup
     {
         $this->journalFactory->setUser($this->user);
-        $this->journalFactory->setErrorOnHash($data['error_if_duplicate_hash']);
+        $this->journalFactory->setErrorOnHash($data['error_if_duplicate_hash'] ?? false);
 
         $collection = $this->journalFactory->create($data);
         $title      = $data['group_title'] ?? null;