diff --git a/templates/adwaitaGtkCss.nix b/templates/adwaitaGtkCss.nix
index ef2cfff..3479c2f 100644
--- a/templates/adwaitaGtkCss.nix
+++ b/templates/adwaitaGtkCss.nix
@@ -20,7 +20,7 @@ theme: with theme.withHashtag; ''
 @define-color view_fg_color ${base05};
 @define-color headerbar_bg_color ${base01};
 @define-color headerbar_fg_color ${base05};
-@define-color headerbar_border_color ${base01}B4;
+@define-color headerbar_border_color ${base01};
 @define-color headerbar_backdrop_color @window_bg_color;
 @define-color headerbar_shade_color rgba(0, 0, 0, 0.07);
 @define-color headerbar_darker_shade_color rgba(0, 0, 0, 0.07);