diff --git a/scripts/prettyasserts.py b/scripts/prettyasserts.py
index 3ea39100..9ee12d55 100755
--- a/scripts/prettyasserts.py
+++ b/scripts/prettyasserts.py
@@ -535,7 +535,7 @@ if __name__ == "__main__":
         action='store_true',
         help="Disable default symbols.")
     parser.add_argument(
-        '-A', '--no-arrows',
+        '--no-arrows',
         action='store_true',
         help="Disable arrow (=>) expressions.")
     parser.add_argument(