diff --git a/src/Helper/RecordTransaction.php b/src/Helper/RecordTransaction.php
index 966b0b6..3423f58 100644
--- a/src/Helper/RecordTransaction.php
+++ b/src/Helper/RecordTransaction.php
@@ -46,6 +46,7 @@ protected function saveTransaction($data, $model) : void
         $data = $this->extractSavableTransactionDetails($data);
 
         $data['ts'] = Carbon::parse($data['ts']);
+        $data['direction'] = strval($data['direction']);
 
         $model->transaction()->updateOrCreate($data);
     }