diff --git a/src/mqtt.service.ts b/src/mqtt.service.ts
index a5d2630..a4a9472 100644
--- a/src/mqtt.service.ts
+++ b/src/mqtt.service.ts
@@ -54,7 +54,6 @@ export class MqttService {
   public messages: Subject<IMqttMessage> = new Subject<IMqttMessage>();
 
   private _clientId = this._generateClientId();
-  private _keepalive = 10;
   private _connectTimeout = 10000;
   private _reconnectPeriod = 10000;
   private _url: string | undefined = undefined;
@@ -99,7 +98,6 @@ export class MqttService {
     this.state.next(MqttConnectionState.CONNECTING);
     const mergedOptions = extend({
       clientId: this._clientId,
-      keepalive: this._keepalive,
       reconnectPeriod: this._reconnectPeriod,
       connectTimeout: this._connectTimeout
     }, options);