diff --git a/serviceLibrary/src/main/java/info/mqtt/android/service/MqttAndroidClient.kt b/serviceLibrary/src/main/java/info/mqtt/android/service/MqttAndroidClient.kt
index 1fd331b3..c02845b9 100755
--- a/serviceLibrary/src/main/java/info/mqtt/android/service/MqttAndroidClient.kt
+++ b/serviceLibrary/src/main/java/info/mqtt/android/service/MqttAndroidClient.kt
@@ -975,7 +975,7 @@ class MqttAndroidClient @JvmOverloads constructor(
      * Process a Connection Lost notification
      */
     private fun connectionLostAction(data: Bundle?) {
-        val reason = data!!.parcelable(MqttServiceConstants.CALLBACK_EXCEPTION) as Exception?
+        val reason = data?.parcelable(MqttServiceConstants.CALLBACK_EXCEPTION) as Exception?
         callbacksList.forEach {
             it.connectionLost(reason)
         }