diff --git a/src/converter.py b/src/converter.py
index 61a1a72..b45b673 100644
--- a/src/converter.py
+++ b/src/converter.py
@@ -52,7 +52,7 @@ def parse_arguments() -> argparse.Namespace:
         "--targetformat",
         required=True,
         metavar="TARGET_FORMAT",
-        help="Target output format (e.g., adguard)",
+        help="Target output format (supported formats: adguard, ublacklist)",
     )
     parser.add_argument(
         "--outputfile",