1 files changed, 1 insertions, 1 deletions
diff --git a/tests/rest/admin/test_device.py b/tests/rest/admin/test_device.py
index faa7f381a9..92c9058887 100644
--- a/tests/rest/admin/test_device.py
+++ b/tests/rest/admin/test_device.py
@@ -221,7 +221,7 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
-        self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"])
+        self.assertEqual(Codes.TOO_LARGE, channel.json_body["errcode"])
 
         # Ensure the display name was not updated.
         request, channel = self.make_request(