diff --git a/plugins/channelrx/demodfreedv/freedvdemodgui.cpp b/plugins/channelrx/demodfreedv/freedvdemodgui.cpp
index 6f534d75b..4d11d62bf 100644
--- a/plugins/channelrx/demodfreedv/freedvdemodgui.cpp
+++ b/plugins/channelrx/demodfreedv/freedvdemodgui.cpp
@@ -520,6 +520,7 @@ void FreeDVDemodGUI::makeUIConnections()
     QObject::connect(ui->volumeIn, &QDial::valueChanged, this, &FreeDVDemodGUI::on_volumeIn_valueChanged);
     QObject::connect(ui->agc, &ButtonSwitch::toggled, this, &FreeDVDemodGUI::on_agc_toggled);
     QObject::connect(ui->audioMute, &QToolButton::toggled, this, &FreeDVDemodGUI::on_audioMute_toggled);
+    QObject::connect(ui->spanLog2, &QSlider::valueChanged, this, &FreeDVDemodGUI::on_spanLog2_valueChanged);
 }
 
 void FreeDVDemodGUI::updateAbsoluteCenterFrequency()
diff --git a/plugins/channeltx/modfreedv/freedvmodgui.cpp b/plugins/channeltx/modfreedv/freedvmodgui.cpp
index 19ac57d3e..58325a00a 100644
--- a/plugins/channeltx/modfreedv/freedvmodgui.cpp
+++ b/plugins/channeltx/modfreedv/freedvmodgui.cpp
@@ -635,6 +635,7 @@ void FreeDVModGUI::makeUIConnections()
     QObject::connect(ui->morseKeyer, &ButtonSwitch::toggled, this, &FreeDVModGUI::on_morseKeyer_toggled);
     QObject::connect(ui->navTimeSlider, &QSlider::valueChanged, this, &FreeDVModGUI::on_navTimeSlider_valueChanged);
     QObject::connect(ui->showFileDialog, &QPushButton::clicked, this, &FreeDVModGUI::on_showFileDialog_clicked);
+    QObject::connect(ui->spanLog2, &QSlider::valueChanged, this, &FreeDVModGUI::on_spanLog2_valueChanged);
 }
 
 void FreeDVModGUI::updateAbsoluteCenterFrequency()