diff --git a/plugins/channelrx/demodnavtex/navtexdemodgui.cpp b/plugins/channelrx/demodnavtex/navtexdemodgui.cpp
index 42ecf5e17..de33b0ba2 100644
--- a/plugins/channelrx/demodnavtex/navtexdemodgui.cpp
+++ b/plugins/channelrx/demodnavtex/navtexdemodgui.cpp
@@ -360,6 +360,8 @@ void NavtexDemodGUI::on_rfBW_valueChanged(int value)
 
 void NavtexDemodGUI::on_filterStation_currentIndexChanged(int index)
 {
+    (void) index;
+
     m_settings.m_filterStation = ui->filterStation->currentText();
     filter();
     applySettings();
@@ -367,6 +369,8 @@ void NavtexDemodGUI::on_filterStation_currentIndexChanged(int index)
 
 void NavtexDemodGUI::on_filterType_currentIndexChanged(int index)
 {
+    (void) index;
+
     m_settings.m_filterType = ui->filterType->currentText();
     filter();
     applySettings();
diff --git a/plugins/channelrx/demodrtty/rttydemodgui.cpp b/plugins/channelrx/demodrtty/rttydemodgui.cpp
index 8785f3a9d..57fda37c2 100644
--- a/plugins/channelrx/demodrtty/rttydemodgui.cpp
+++ b/plugins/channelrx/demodrtty/rttydemodgui.cpp
@@ -248,6 +248,8 @@ void RttyDemodGUI::on_suppressCRLF_clicked(bool checked)
 
 void RttyDemodGUI::on_mode_currentIndexChanged(int index)
 {
+    (void) index;
+
     QString mode = ui->mode->currentText();
 
     bool custom = mode == "Custom";