diff --git a/apps/client/src/stylesheets/theme-next/shell.css b/apps/client/src/stylesheets/theme-next/shell.css
index 1b131a6a2..7ff132e1a 100644
--- a/apps/client/src/stylesheets/theme-next/shell.css
+++ b/apps/client/src/stylesheets/theme-next/shell.css
@@ -41,7 +41,7 @@ body.mobile {
 /* #region Mica */
 
 /* Quirk: --background-material is read before "theme-supports-background-effects" class
- * is applied. Apply the material even if the theme doesn't support it. */
+ * is applied. Apply the matterial even if the theme doesn't support it. */
 body.background-effects.platform-win32 {
     &.layout-vertical {
         --background-material: mica;
@@ -59,7 +59,7 @@ body.background-effects.platform-darwin {
     }
 
     &.layout-horizontal {
-        --background-material: header;
+        --background-material: hud;
     }
 }