diff --git a/layout/includes/third-party/katex.pug b/layout/includes/third-party/katex.pug
index 394991f..6690428 100644
--- a/layout/includes/third-party/katex.pug
+++ b/layout/includes/third-party/katex.pug
@@ -1,4 +1,4 @@
-link(rel="stylesheet" type="text/css" href=theme.katex.cdn.css)
+link(rel="stylesheet" type="text/css" href=theme.CDN.katex)
 script(src=url_for(theme.CDN.katex_copytex))
 link(rel="stylesheet" type="text/css" href=theme.CDN.katex_copytex_css)
 script.