diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 443da05b..4ea2d474 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -53,7 +53,7 @@ jobs:
       
       - name: Test Super Flat Creation
         run: |
-          kubectl exec banzai-e2e-test -c banzai-listener -- pytest-s --pyargs banzai --durations=0 --junitxml=/archive/engineering/pytest-master-flat.xml -m master_flat
+          kubectl exec banzai-e2e-test -c banzai-listener -- pytest -s --pyargs banzai --durations=0 --junitxml=/archive/engineering/pytest-master-flat.xml -m master_flat
       
       - name: Test Science Frame Creation
         run: |
diff --git a/banzai/tests/utils.py b/banzai/tests/utils.py
index afd3aa61..2a48aa95 100644
--- a/banzai/tests/utils.py
+++ b/banzai/tests/utils.py
@@ -69,7 +69,10 @@ def __init__(self, hdu_list=None, file_path='/tmp/test_image.fits', instrument=N
         self._file_path = file_path
         self.is_bad = False
         self.hdu_order = ['SCI', 'CAT', 'BPM', 'ERR']
-        self.n_sub_exposures = 1
+
+        @property
+        def n_sub_exposures(self):
+            return 1
         for keyword in kwargs:
             setattr(self, keyword, kwargs[keyword])