diff --git a/src/.vuepress/config.js b/src/.vuepress/config.js
index ecb78045e0..473482b170 100644
--- a/src/.vuepress/config.js
+++ b/src/.vuepress/config.js
@@ -212,6 +212,7 @@ module.exports = {
     ]
   ],
   markdown: {
+    lineNumbers: true,
     /** @param {import('markdown-it')} md */
     extendMarkdown: md => {
       md.options.highlight = require('./markdown/highlight')(