diff --git a/tests/test_patreon_downloader.py b/tests/test_patreon_downloader.py
index 8533088..0522807 100644
--- a/tests/test_patreon_downloader.py
+++ b/tests/test_patreon_downloader.py
@@ -289,7 +289,7 @@ def test_video_permanent_failure_fails_fast(tmp_path, monkeypatch):
 
 def test_one_failure_isolated(tmp_path):
     class _BoomSession(_FakeSession):
-        def get(self, url, stream=False, timeout=None):
+        def get(self, url, stream=False, timeout=None, headers=None):
             self.calls.append(url)
             if "bad" in url:
                 raise RuntimeError("network boom")