diff --git a/src/main/java/device/usbPlayer/UsbPlayer.java b/src/main/java/device/usbPlayer/UsbPlayer.java
index 1ad4b8d..6d8f2a0 100644
--- a/src/main/java/device/usbPlayer/UsbPlayer.java
+++ b/src/main/java/device/usbPlayer/UsbPlayer.java
@@ -193,6 +193,7 @@ public class UsbPlayer implements Device {
     public String unmute() {
 
         setLautstaerke(soundWas);
+        this.soundWas = 0;
         return "unmuted";
     }