diff --git a/Lib/fontTools/varLib/mutator.py b/Lib/fontTools/varLib/mutator.py
index d83706187..de612365f 100644
--- a/Lib/fontTools/varLib/mutator.py
+++ b/Lib/fontTools/varLib/mutator.py
@@ -417,7 +417,7 @@ def main(args=None):
 		"-v", "--verbose", action="store_true", help="Run more verbosely.")
 	logging_group.add_argument(
 		"-q", "--quiet", action="store_true", help="Turn verbosity off.")
-	logging_group.add_argument(
+	parser.add_argument(
 		"--no-overlap",
 		dest="overlap",
 		action="store_false",