diff --git a/pkg/cli/cmd.go b/pkg/cli/cmd.go
index 3c47480..8fc98d3 100644
--- a/pkg/cli/cmd.go
+++ b/pkg/cli/cmd.go
@@ -178,7 +178,7 @@ var rootCmd = &cobra.Command{
 	SilenceErrors: true,
 	SilenceUsage:  true,
 	Run: func(cmd *cobra.Command, args []string) {
-		// execute `lm ls` by default
+		cmd.Usage()
 	},
 }