diff --git a/run.py b/run.py
index 94d315b..86b5a4a 100644
--- a/run.py
+++ b/run.py
@@ -73,7 +73,7 @@ if __name__ == "__main__":
     try:
         if any(a in ("-h", "--help") for a in sys.argv[1:]):
             print(
-                "Usage: python run.py [--mode mem|quic|wt] [--log-level LEVEL] [--run-seconds N]\n"
+                "Usage: python run.py [--mode mem|quic|wt|net] [--log-level LEVEL] [--run-seconds N]\n"
                 "  TLS (for wt/quic): set QUIC_CERT/QUIC_KEY or WT_CERT/WT_KEY env vars\n"
                 "  WT static server (MODE=wt): STATIC=1 [STATIC_HOST/PORT/ROOT]\n"
                 "Examples:\n  MODE=wt QUIC_CERT=cert.pem QUIC_KEY=key.pem python run.py\n  MODE=mem python run.py"
@@ -113,3 +113,4 @@ async def _run_tasks_with_optional_timeout(tasks):
         for t in tasks:
             t.cancel()
         await asyncio.gather(*tasks, return_exceptions=True)
+