diff --git a/src/dodal/devices/areadetector/plugins/MJPG.py b/src/dodal/devices/areadetector/plugins/MJPG.py
index 9b614f3ad0..4ee666b129 100644
--- a/src/dodal/devices/areadetector/plugins/MJPG.py
+++ b/src/dodal/devices/areadetector/plugins/MJPG.py
@@ -70,7 +70,7 @@ def get_snapshot():
             try:
                 response = requests.get(url_str, stream=True)
                 response.raise_for_status()
-                with Image.open(response.raw) as image:
+                with Image.open(response.content) as image:
                     self.post_processing(image)
                     st.set_finished()
             except requests.HTTPError as e:
diff --git a/tests/devices/unit_tests/detector/test_detector.py b/tests/devices/unit_tests/detector/test_detector.py
index d9932f64b3..919ff0c0a6 100644
--- a/tests/devices/unit_tests/detector/test_detector.py
+++ b/tests/devices/unit_tests/detector/test_detector.py
@@ -133,7 +133,7 @@ def test_detector_params_is_serialisable(tmp_path):
 
 
 # Until https://github.com/DiamondLightSource/dodal/issues/775
-def test_detector_params_deserialisation_unchanged(tmp_path):
+def test_detector_params_deserialisation_unchanged():
     json = """
     {"expected_energy_ev":100.0,
      "exposure_time":1.0,