diff --git a/test/mitmproxy/io/test_compat.py b/test/mitmproxy/io/test_compat.py
index 8e793f28a..47d5e1777 100644
--- a/test/mitmproxy/io/test_compat.py
+++ b/test/mitmproxy/io/test_compat.py
@@ -8,7 +8,7 @@ from mitmproxy import exceptions
     ["dumpfile-011.bin", "https://example.com/"],
     ["dumpfile-018.bin", "https://www.example.com/"],
     ["dumpfile-019.bin", "https://webrv.rtb-seller.com/"],
-    ])
+])
 def test_load(tdata, dumpfile, url):
     with open(tdata.path("mitmproxy/data/" + dumpfile), "rb") as f:
         flow_reader = io.FlowReader(f)