diff --git a/cmd/go-portScan.go b/cmd/go-portScan.go
index 949c4d0..d181f1c 100644
--- a/cmd/go-portScan.go
+++ b/cmd/go-portScan.go
@@ -228,7 +228,7 @@ func run(c *cli.Context) error {
 		s, err = syn.NewSynScanner(firstIp, retChan, option)
 	}
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "[error] Initialize Scanner: %s", err)
+		fmt.Fprintf(os.Stderr, "[error] Initialize Scanner: %s\n", err)
 		os.Exit(-1)
 	}