diff --git a/Source/MQTTnet/MqttApplicationMessageBuilder.cs b/Source/MQTTnet/MqttApplicationMessageBuilder.cs
index c265e4d1..bc2d9b86 100644
--- a/Source/MQTTnet/MqttApplicationMessageBuilder.cs
+++ b/Source/MQTTnet/MqttApplicationMessageBuilder.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
@@ -103,6 +104,16 @@ namespace MQTTnet
             return this;
         }
 
+        public MqttApplicationMessageBuilder WithQualityOfServiceLevel(int qualityOfServiceLevel)
+        {
+            if (qualityOfServiceLevel < 0 || qualityOfServiceLevel > 2)
+            {
+                throw new ArgumentOutOfRangeException(nameof(qualityOfServiceLevel));
+            }
+
+            return WithQualityOfServiceLevel((MqttQualityOfServiceLevel)qualityOfServiceLevel);
+        }
+
         public MqttApplicationMessageBuilder WithRetainFlag(bool value = true)
         {
             _retain = value;