diff --git a/usbserial/src/main/java/com/felhr/usbserial/AbstractWorkerThread.java b/usbserial/src/main/java/com/felhr/usbserial/AbstractWorkerThread.java
index 9a57f0a..e046e84 100644
--- a/usbserial/src/main/java/com/felhr/usbserial/AbstractWorkerThread.java
+++ b/usbserial/src/main/java/com/felhr/usbserial/AbstractWorkerThread.java
@@ -1,6 +1,6 @@
 package com.felhr.usbserial;
 
-/* package */ abstract class AbstractWorkerThread extends Thread {
+abstract class AbstractWorkerThread extends Thread {
     boolean firstTime = true;
     private volatile boolean keep = true;