diff --git a/rust2rpm/__main__.py b/rust2rpm/__main__.py
index 82233d6..a6e6e80 100644
--- a/rust2rpm/__main__.py
+++ b/rust2rpm/__main__.py
@@ -384,7 +384,7 @@ def main():
                         default=None,
                         help="Use autorelease and autochangelog features")
     parser.add_argument("--no-rpmautospec", action="store_false",
-                        default=None,
+                        dest="rpmautospec",
                         help="Do not use rpmautospec")
     parser.add_argument("--relative-license-paths", action="store_true",
                         help="Put all license files in main license directory")
@@ -468,7 +468,7 @@ def main():
     kwargs["auto_changelog_entry"] = not args.no_auto_changelog_entry
 
     rpmautospec = args.rpmautospec
-    if args.rpmautospec is None:
+    if rpmautospec is None:
         rpmautospec = detect_rpmautospec(args.target, spec_file)
     kwargs["rpmautospec"] = rpmautospec