diff --git a/sdrgui/gui/glspectrum.cpp b/sdrgui/gui/glspectrum.cpp
index f5fcd03a7..e33d7ae91 100644
--- a/sdrgui/gui/glspectrum.cpp
+++ b/sdrgui/gui/glspectrum.cpp
@@ -1964,6 +1964,8 @@ void GLSpectrum::applyChanges()
 			(m_histogramMarkers[i].m_frequency - m_frequencyScale.getRangeMin()) / m_frequencyScale.getRange();
 		m_histogramMarkers[i].m_point.ry() =
 			(m_powerScale.getRangeMax() - m_histogramMarkers[i].m_power) / m_powerScale.getRange();
+		m_histogramMarkers[i].m_fftBin =
+			(((m_histogramMarkers[i].m_frequency - m_centerFrequency) / (float) m_sampleRate) * m_fftSize) + (m_fftSize / 2);
 	}
 
 	// Waterfall markers
@@ -2147,6 +2149,7 @@ void GLSpectrum::mousePressEvent(QMouseEvent* event)
             pHis.ry() = (ep.y()/height() - m_histogramRect.top()) / m_histogramRect.height();
             float frequency = m_frequencyScale.getRangeMin() + pHis.x()*m_frequencyScale.getRange();
             float power = m_powerScale.getRangeMax() - pHis.y()*m_powerScale.getRange();
+			int fftBin = (((frequency - m_centerFrequency) / (float) m_sampleRate) * m_fftSize) + (m_fftSize / 2);
 
             if ((pHis.x() >= 0) && (pHis.x() <= 1) && (pHis.y() >= 0) && (pHis.y() <= 1))
             {
@@ -2155,6 +2158,7 @@ void GLSpectrum::mousePressEvent(QMouseEvent* event)
                     m_histogramMarkers.push_back(HistogramMarker());
                     m_histogramMarkers.back().m_point = pHis;
                     m_histogramMarkers.back().m_frequency = frequency;
+					m_histogramMarkers.back().m_fftBin = fftBin;
                     m_histogramMarkers.back().m_frequencyStr = displayScaled(
                         frequency,
                         'f',
diff --git a/sdrgui/gui/glspectrum.h b/sdrgui/gui/glspectrum.h
index 032ae3843..e54f98cc1 100644
--- a/sdrgui/gui/glspectrum.h
+++ b/sdrgui/gui/glspectrum.h
@@ -178,6 +178,7 @@ private:
     struct HistogramMarker {
         QPointF m_point;
         float m_frequency;
+        int m_fftBin;
         float m_power;
         QString m_frequencyStr;
         QString m_powerStr;
@@ -186,6 +187,7 @@ private:
         HistogramMarker() :
             m_point(0, 0),
             m_frequency(0),
+            m_fftBin(0),
             m_power(0),
             m_frequencyStr(),
             m_powerStr(),
@@ -195,6 +197,7 @@ private:
         HistogramMarker(
             const QPointF& point,
             float frequency,
+            int   fftBin,
             float power,
             const QString& frequencyStr,
             const QString& powerStr,
@@ -203,6 +206,7 @@ private:
         ) :
             m_point(point),
             m_frequency(frequency),
+            m_fftBin(fftBin),
             m_power(power),
             m_frequencyStr(frequencyStr),
             m_powerStr(powerStr),
@@ -212,6 +216,7 @@ private:
         HistogramMarker(const HistogramMarker& other) :
             m_point(other.m_point),
             m_frequency(other.m_frequency),
+            m_fftBin(other.m_fftBin),
             m_power(other.m_power),
             m_frequencyStr(other.m_frequencyStr),
             m_powerStr(other.m_powerStr),