diff --git a/lib/interpolate-source-code.js b/lib/interpolate-source-code.mjs
similarity index 86%
rename from lib/interpolate-source-code.js
rename to lib/interpolate-source-code.mjs
index 3de5182..db922d1 100644
--- a/lib/interpolate-source-code.js
+++ b/lib/interpolate-source-code.mjs
@@ -1,7 +1,7 @@
 // https://github.com/nuxt/content/pull/676
 
-const path = require('path');
-const fs = require('fs/promises');
+import path from 'path'
+import fs from 'fs/promises'
 
 const interpolateSourceCode = async (file) => {
   if (file.extension !== '.md') {
@@ -26,8 +26,7 @@ const interpolateSourceCode = async (file) => {
     if (inCodeBlock && line.startsWith(sourceKey)) {
       try {
         const [lineIndent, relativePath] = lines[i].split(sourceKey)
-        // const sourceCode = path.resolve(path.dirname(file.path), relativePath)
-        const sourceCode = path.resolve(basePath, relativePath)
+        const sourceCode = path.resolve(basePath, relativePath.trim())
         const buffer = await fs.readFile(sourceCode,{encoding: 'utf8'})
 
         let indentedLine = lineIndent + buffer.toString().replace(/\n/g, "\n" + lineIndent)