diff --git a/tuned-adm.py b/tuned-adm.py
index 4b7e9ed..1df8cc3 100755
--- a/tuned-adm.py
+++ b/tuned-adm.py
@@ -94,16 +94,17 @@ if __name__ == "__main__":
 	parser_profile_mode = subparsers.add_parser("profile_mode", help="show current profile selection mode")
 	parser_profile_mode.set_defaults(action="profile_mode")
 
-	if len(sys.argv) < 2:
-		parser.print_usage(file = sys.stderr)
-		sys.exit(1)
 	args = parser.parse_args(sys.argv[1:])
 
 	options = vars(args)
 	debug = options.pop("debug")
 	asynco = options.pop("async")
 	timeout = options.pop("timeout")
-	action_name = options.pop("action")
+	try:
+		action_name = options.pop("action")
+	except KeyError:
+		parser.print_usage(file = sys.stderr)
+		sys.exit(1)
 	log_level = options.pop("loglevel")
 	result = False