diff --git a/tests/rest/datacube/test_datacube.py b/tests/rest/datacube/test_datacube.py
index b438320de..37c988da0 100644
--- a/tests/rest/datacube/test_datacube.py
+++ b/tests/rest/datacube/test_datacube.py
@@ -457,7 +457,7 @@ def get_create_job_pg(self, connection):
 
             def get() -> dict:
                 assert create_job.call_count == 1
-                return create_job.call_args.kwargs["process_graph"]
+                return create_job.call_args[1]["process_graph"]
 
             yield get