diff --git a/patchodon.py b/patchodon.py
index 9ee5565..dc4d0fd 100755
--- a/patchodon.py
+++ b/patchodon.py
@@ -11,7 +11,7 @@ def main():
     ap = argparse.ArgumentParser(
         prog=sys.argv[0],
         epilog="patchodon.py version " + VERSION + " is a free software.",
-        description="Generate metadata from a single document change.",
+        description="Publicly send and receive git patch series via Mastodon.",
     )
 
     cmds = ap.add_subparsers(required=True, dest="command")