diff --git a/src/DIRAC/Resources/Computing/AREXComputingElement.py b/src/DIRAC/Resources/Computing/AREXComputingElement.py
index 25d7515151a..0ba9d3b68f0 100755
--- a/src/DIRAC/Resources/Computing/AREXComputingElement.py
+++ b/src/DIRAC/Resources/Computing/AREXComputingElement.py
@@ -521,6 +521,9 @@ def _getArcJobID(self, executableFile, inputs, outputs, delegation):
         response = result["Value"]
 
         responseJob = response.json()["job"]
+        if isinstance(responseJob, list):
+            responseJob = responseJob[0]
+
         if responseJob["status-code"] > "400":
             self.log.warn(
                 "Failed to submit job",