diff --git a/roles/home-gui/files/gnome-setup.sh b/roles/home-gui/files/gnome-setup.sh
index 5b51bb7..91419af 100644
--- a/roles/home-gui/files/gnome-setup.sh
+++ b/roles/home-gui/files/gnome-setup.sh
@@ -174,6 +174,9 @@ set_misc_preferences () {
     # Remove minimise and maximise buttons from the window title bars.
     gsettings set org.gnome.desktop.wm.preferences button-layout 'appmenu:minimize,maximize,close'
 
+    # Lower windows on middle-click.
+    gsettings set org.gnome.desktop.wm.preferences action-middle-click-titlebar 'lower'
+
     # Stop dialogue boxes from 'sticking' to their parent windows.
     gsettings set org.gnome.mutter attach-modal-dialogs false