diff --git a/HCMagicHome.js b/HCMagicHome.js
index 00e0b20..4698dcf 100644
--- a/HCMagicHome.js
+++ b/HCMagicHome.js
@@ -14,7 +14,7 @@ class HCMagicHome extends HCColorLamp {
 		}
 
 		let opts = {
-			ack: (this._configuration.ack !== undefined) ? Control.ackMask(this._configuration.ack) : true,
+			ack: (this._configuration.ack !== undefined) ? Control.ackMask(this._configuration.ack) : Control.ackMask(0x0F),
 			log_all_received: (this._configuration.logall !== undefined) ? this._configuration.logall : false,
 			connect_timeout: (this._configuration.connect_timeout !== undefined) ? this._configuration.connect_timeout : 10000,
 			command_timeout: (this._configuration.command_timeout !== undefined) ? this._configuration.command_timeout : 5000,
diff --git a/package.json b/package.json
index 962f532..00e1ddd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hc-magichome",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Magic Home Plugin for Homecontrol",
   "main": "HCMagicHome.js",
   "scripts": {