diff --git a/src/abstractreader.cpp b/src/abstractreader.cpp
--- a/src/abstractreader.cpp
+++ b/src/abstractreader.cpp
@@ -41,13 +41,11 @@ void AbstractReader::enable(bool enabled
 {
     if (enabled)
     {
-        firstReadAfterEnable = true;
         QObject::connect(_device, &QIODevice::readyRead,
                          this, &AbstractReader::onDataReady);
     }
     else
     {
-        firstReadAfterEnable = false;
         QObject::disconnect(_device, 0, this, 0);
         disconnectSinks();
     }