diff --git a/main.go b/main.go
index b6da438..10925b1 100644
--- a/main.go
+++ b/main.go
@@ -158,7 +158,8 @@ func main() {
 		fmt.Println(version)
 
 	default:
-		fallthrough
+		helpCmd()
+		os.Exit(1)
 	case "help":
 		helpCmd()
 	}