diff --git a/src/dstack/_internal/cli/commands/run.py b/src/dstack/_internal/cli/commands/run.py
index 9c8be0356..ec003812d 100644
--- a/src/dstack/_internal/cli/commands/run.py
+++ b/src/dstack/_internal/cli/commands/run.py
@@ -106,8 +106,8 @@ def _command(self, args: argparse.Namespace):
             parser = argparse.ArgumentParser()
             configurator = run_configurators_mapping[ConfigurationType(conf.type)]
             configurator.register(parser)
-            args, unknown = parser.parse_known_args(args.unknown)
-            configurator.apply(args, unknown, conf)
+            known, unknown = parser.parse_known_args(args.unknown)
+            configurator.apply(known, unknown, conf)
 
             with console.status("Getting run plan..."):
                 run_plan = self.api.runs.get_plan(