diff --git a/Irradiance-X/gtk-3.0/apps/unity.css b/Irradiance-X/gtk-3.0/apps/unity.css
index 770fe54..26c1f6c 100644
--- a/Irradiance-X/gtk-3.0/apps/unity.css
+++ b/Irradiance-X/gtk-3.0/apps/unity.css
@@ -26,7 +26,7 @@ UnityDecoration.top {
     padding: 1px 6px 0 6px;
 
     box-shadow: inset 0 0 transparent, inset 0 0 transparent,
-                inset 0 1px shade (rgba @dark_bg_color, 1.12), inset 0 0 transparent;
+                inset 0 1px shade (@dark_bg_color, 1.12), inset 0 0 transparent;
 
     background-color: transparent;
     background-clip: border-box;