diff --git a/src/ATBAPP/DeviceControllerInterface.h b/src/ATBAPP/DeviceControllerInterface.h
index 6de0068..249e1b3 100644
--- a/src/ATBAPP/DeviceControllerInterface.h
+++ b/src/ATBAPP/DeviceControllerInterface.h
@@ -168,7 +168,7 @@ signals:
 
 
     /**
-     * show text messaged in service mode
+     * show text messages in service mode
      */
     void showServiceText(const QString & text);
     void showServiceText(quint16 textNumber);