diff --git a/plugins/samplesource/sdrdaemon/sdrdaemongui.cpp b/plugins/samplesource/sdrdaemon/sdrdaemongui.cpp
index 2573b3d5f..cffe1cdfb 100644
--- a/plugins/samplesource/sdrdaemon/sdrdaemongui.cpp
+++ b/plugins/samplesource/sdrdaemon/sdrdaemongui.cpp
@@ -407,7 +407,7 @@ void SDRdaemonGui::updateWithStreamTime()
 	s = QString::number(m_nbLz4SuccessfulDecodes, 'f', 0);
 	ui->lz4DecodesOKText->setText(tr("%1").arg(s));
 
-	s = QString::number((m_bufferGauge < 0 ? 50 + m_bufferGauge : 50 - m_bufferGauge), 'f', 0);
+	s = QString::number((m_bufferGauge < 0 ? -50 - m_bufferGauge : 50 - m_bufferGauge), 'f', 0);
 	ui->bufferRWBalanceText->setText(tr("%1").arg(s));
 
     ui->bufferGaugeNegative->setValue((m_bufferGauge < 0 ? 50 + m_bufferGauge : 0));