diff --git a/bin/pwgen b/bin/pwgen
index b820ffc..6bb23cb 100644
--- a/bin/pwgen
+++ b/bin/pwgen
@@ -29,6 +29,9 @@ def main():
     parser.add_argument(
             '--encoding', '-e',
             help="Character encoding of the directory")
+    parser.add_argument(
+            '--unmunch-bin', '-u',
+            help="Path to my/hunspell unmunch binary")
 
     parser.add_argument(
             '--lang', '-l',