diff --git a/config/postcss.config.js b/config/postcss.config.js
index fe317a664..a97ab7812 100644
--- a/config/postcss.config.js
+++ b/config/postcss.config.js
@@ -23,7 +23,7 @@ module.exports = {
           './assets/scss/components/_code.scss',
           './assets/scss/components/_search.scss',
           './assets/scss/common/_dark.scss',
-          './node_modules/katex/dist/katex.css'
+          './node_modules/katex/dist/katex.css',
         ]),
       ],
     }),