diff --git a/test/mitmproxy/addons/test_proxyauth.py b/test/mitmproxy/addons/test_proxyauth.py
index 766729566..6c36b7e84 100644
--- a/test/mitmproxy/addons/test_proxyauth.py
+++ b/test/mitmproxy/addons/test_proxyauth.py
@@ -133,7 +133,7 @@ def test_check():
             f.request.headers["Proxy-Authorization"] = proxyauth.mkauth(
                 "einstein", "foo"
             )
-        assert not up.check(f)
+            assert not up.check(f)
 
 
 def test_authenticate():