diff --git a/plugins/channelmimo/interferometer/interferometergui.cpp b/plugins/channelmimo/interferometer/interferometergui.cpp
index a1387c0f0..0206cfc46 100644
--- a/plugins/channelmimo/interferometer/interferometergui.cpp
+++ b/plugins/channelmimo/interferometer/interferometergui.cpp
@@ -146,6 +146,8 @@ InterferometerGUI::InterferometerGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUI
     m_channelMarker.setVisible(true); // activate signal on the last setting only
 
     m_settings.setChannelMarker(&m_channelMarker);
+    m_settings.setScopeGUI(ui->scopeGUI);
+    m_settings.setSpectrumGUI(ui->spectrumGUI);
 
     m_deviceUISet->registerChannelInstance(Interferometer::m_channelIdURI, this);
     m_deviceUISet->addChannelMarker(&m_channelMarker);
@@ -192,6 +194,8 @@ void InterferometerGUI::applySettings(bool force)
 
 void InterferometerGUI::displaySettings()
 {
+    ui->correlationType->setCurrentIndex((int) m_settings.m_correlationType);
+
     m_channelMarker.blockSignals(true);
     m_channelMarker.setCenterFrequency(0);
     m_channelMarker.setTitle(m_settings.m_title);
diff --git a/plugins/channelmimo/interferometer/interferometersettings.cpp b/plugins/channelmimo/interferometer/interferometersettings.cpp
index f870673ee..f629f0b68 100644
--- a/plugins/channelmimo/interferometer/interferometersettings.cpp
+++ b/plugins/channelmimo/interferometer/interferometersettings.cpp
@@ -68,6 +68,8 @@ QByteArray InterferometerSettings::serialize() const
     if (m_channelMarker) {
         s.writeBlob(22, m_channelMarker->serialize());
     }
+
+    return s.final();
 }
 
 bool InterferometerSettings::deserialize(const QByteArray& data)