diff --git a/src/sass/gtk/apps/_gnome-40.0.scss b/src/sass/gtk/apps/_gnome-40.0.scss
index 2a1d432c..cf0c3c9b 100644
--- a/src/sass/gtk/apps/_gnome-40.0.scss
+++ b/src/sass/gtk/apps/_gnome-40.0.scss
@@ -231,7 +231,8 @@ window.nightthemeswitcher headerbar {
 //
 
 window.background.csd {
-  > contents {
+  > contents,
+  > widget { // 44.0
     > leaflet.unfolded > box {
       > headerbar {
         @extend %side_headerbar_left;