diff --git a/tests/test_reference_runs/conftest.py b/tests/test_reference_runs/conftest.py
index 931524086863a40f3d6fd73d4f3a2e771a8c73d4..19e3d9cdc8d2449b2696b63dd0a83851627fc080 100644
--- a/tests/test_reference_runs/conftest.py
+++ b/tests/test_reference_runs/conftest.py
@@ -52,7 +52,7 @@ def pytest_addoption(parser):
     parser.addoption(
         "--use-slurm",
         action="store_true",
-        default=True,
+        default=False,
         help=("Run xfel-calibrate CLI without "
               "--no-cluster-job option and use Slurm"),
     )