diff --git a/main.go b/main.go
index 27614e8..6374bc4 100644
--- a/main.go
+++ b/main.go
@@ -257,7 +257,10 @@ func main() {
 			Action: pubsub,
 		},
 	}
-	app.Run(os.Args)
+	err := app.Run(os.Args)
+	if err != nil {
+		log.Error(err)
+	}
 }
 
 func setDebugLevel(c *cli.Context) {
diff --git a/mqtt.go b/mqtt.go
index 37f7437..d4458d6 100644
--- a/mqtt.go
+++ b/mqtt.go
@@ -107,7 +107,10 @@ func NewOption(c *cli.Context) (*MQTT.ClientOptions, error) {
 	port := c.Int("p")
 
 	if host == "" {
-		getSettingsFromFile(c.String("conf"), opts)
+		err := getSettingsFromFile(c.String("conf"), opts)
+		if err != nil {
+			return nil, err
+		}
 	}
 
 	clientId := c.String("i")
diff --git a/publish.go b/publish.go
index d4b5250..e4cc615 100644
--- a/publish.go
+++ b/publish.go
@@ -51,5 +51,9 @@ func publish(c *cli.Context) {
 
 	}
 	log.Info("Published")
-	client.Disconnect()
+	err = client.Disconnect()
+	if err != nil {
+		log.Errorf("disconnect error: %s", err)
+	}
+
 }