diff --git a/README.md b/README.md
index be80ea9..f5f4792 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,8 @@ fuck.
 ## Usage
 
 ```sh
-$ ./main.py -h
-usage: hhirlstats [-h] [-v] [-C] [-o FILE] replay [replay ...]
+$ ./index.py -h
+usage: hhirlstats [-h] [-v] [-C] [-t FILE] [-o FILE] replay [replay ...]
 
 extracts stats from a Showdown replay
 
@@ -23,6 +23,8 @@ options:
   -h, --help            show this help message and exit
   -v, --verbose         add debugging info (default: None)
   -C, --no-cache        fetch replays instead of using cache (default: False)
+  -t FILE, --teams FILE
+                        JSON file defining players to teams (default: teams.json)
   -o FILE, --output FILE
                         output data file (default: data.db)
 ```
diff --git a/main.py b/index.py
similarity index 99%
rename from main.py
rename to index.py
index 56190c2..675f8ad 100755
--- a/main.py
+++ b/index.py
@@ -358,7 +358,7 @@ def fetch(replay: str, cache: bool = True) -> Replay:
     return Replay(**data)
 
 
-def main(args):
+def main():
     parser = argparse.ArgumentParser(
         prog=APP,
         description="extracts stats from a Showdown replay",
@@ -389,7 +389,7 @@ def main(args):
     )
     parser.add_argument("replay", nargs="+", help="replay ID or URL")
 
-    args = parser.parse_args(args)
+    args = parser.parse_args()
     if args.verbose and args.verbose > 1:
         LOG.setLevel(logging.TRACE)
     elif args.verbose:
@@ -435,4 +435,4 @@ def main(args):
 
 
 if __name__ == "__main__":
-    main(sys.argv[1:])
+    main()