diff --git a/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php b/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php
index b4389fad4..906d773a1 100644
--- a/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php
+++ b/GaelO2/app/GaelO/Adapters/HttpClientAdapter.php
@@ -77,7 +77,7 @@ public function requestUploadArrayDicom(string $method, string $uri, array $file
                     $reason = $exception->getMessage();
                 }
                 // this is delivered each failed request
-                Log::error('DICOM Import Failed in Orthanc Temporary: ' + $reason);
+                Log::error('DICOM Import Failed in Orthanc Temporary: '.$reason. ' index: '.$index);
             },
         ]);