diff --git a/apps/openmw/mwgui/settingswindow.hpp b/apps/openmw/mwgui/settingswindow.hpp
index 5910f07e00..99553808b4 100644
--- a/apps/openmw/mwgui/settingswindow.hpp
+++ b/apps/openmw/mwgui/settingswindow.hpp
@@ -53,7 +53,6 @@ namespace MWGui
             void onTabChanged(MyGUI::TabControl* _sender, size_t index);
             void onOkButtonClicked(MyGUI::Widget* _sender);
             void onTextureFilteringChanged(MyGUI::ComboBox* _sender, size_t pos);
-            void onTextureMipmappingChanged(MyGUI::ComboBox* _sender, size_t pos);
             void onSliderChangePosition(MyGUI::ScrollBar* scroller, size_t pos);
             void onButtonToggled(MyGUI::Widget* _sender);
             void onResolutionSelected(MyGUI::ListBox* _sender, size_t index);