diff --git a/tests/media/test_media_storage.py b/tests/media/test_media_storage.py
index f0f2da65db0b..3792685d9102 100644
--- a/tests/media/test_media_storage.py
+++ b/tests/media/test_media_storage.py
@@ -294,7 +294,9 @@ def _req(
         self.assertEqual(
             self.fetches[0][2], "/_matrix/media/r0/download/" + self.media_id
         )
-        self.assertEqual(self.fetches[0][3], {"allow_remote": "false"})
+        self.assertEqual(
+            self.fetches[0][3], {"allow_remote": "false", "timeout_ms": "20000"}
+        )
 
         headers = {
             b"Content-Length": [b"%d" % (len(self.test_image.data))],