diff --git a/tests/test_images.py b/tests/test_images.py
index 029eb56..525dac9 100644
--- a/tests/test_images.py
+++ b/tests/test_images.py
@@ -5,9 +5,8 @@ from tutor import images
 class ImagesTests(unittest.TestCase):
     def test_get_tag(self):
         config = {
-            "DOCKER_IMAGE_OPENEDX": "openedx",
-            "DOCKER_IMAGE_OPENEDX_DEV": "openedxdev",
-            "DOCKER_REGISTRY": "registry/",
+            "DOCKER_IMAGE_OPENEDX": "registry/openedx",
+            "DOCKER_IMAGE_OPENEDX_DEV": "registry/openedxdev",
         }
         self.assertEqual("registry/openedx", images.get_tag(config, "openedx"))
         self.assertEqual("registry/openedxdev", images.get_tag(config, "openedx-dev"))