diff --git a/components/extensions/mb-extensions/org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization/src/main/java/org/wso2/carbon/andes/extensions/device/mgt/mqtt/authorization/client/dto/DeviceIdentifier.java b/components/extensions/mb-extensions/org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization/src/main/java/org/wso2/carbon/andes/extensions/device/mgt/mqtt/authorization/client/dto/DeviceIdentifier.java
index 5b54351c5c..8ca7b5329d 100644
--- a/components/extensions/mb-extensions/org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization/src/main/java/org/wso2/carbon/andes/extensions/device/mgt/mqtt/authorization/client/dto/DeviceIdentifier.java
+++ b/components/extensions/mb-extensions/org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization/src/main/java/org/wso2/carbon/andes/extensions/device/mgt/mqtt/authorization/client/dto/DeviceIdentifier.java
@@ -39,7 +39,7 @@ public class DeviceIdentifier implements Serializable{
     }
 
     public void setType(String type) {
-        this.type = type.toLowerCase();
+        this.type = type;
     }
     public String getId() {
         return id;