diff --git a/docs/advanced/custom-loader.md b/docs/advanced/custom-loader.md
index ebe8f9473..e5ddfb427 100644
--- a/docs/advanced/custom-loader.md
+++ b/docs/advanced/custom-loader.md
@@ -13,11 +13,10 @@ module.exports = async function (src) {
   const callback = this.async()
   const { content, data } = matter(src)
 
-  const code = `
-    export const frontMatter = ${stringifyObject(data)}
+  const code = `export const frontMatter = ${stringifyObject(data)}
 
-    ${content}
-  `
+${content}`
+  
   return callback(null, code)
 }
 ```