diff --git a/packages/utils/typescript/lib/utils/resolve-outdir.js b/packages/utils/typescript/lib/utils/resolve-outdir.js
index 15b129e59e..a1cf589af9 100644
--- a/packages/utils/typescript/lib/utils/resolve-outdir.js
+++ b/packages/utils/typescript/lib/utils/resolve-outdir.js
@@ -1,16 +1,17 @@
 'use strict';
+const path = require('path');
 const resolveConfigOptions = require('./resolve-config-options');
 const isUsingTypescript = require('./is-using-typescript');
 
 const DEFAULT_TS_CONFIG_FILENAME = 'tsconfig.json';
 /**
- * Checks if `dir` is a using TypeScript (whether there is a tsconfig file or not)
+ * Gets the outDir value from config file (tsconfig)
  * @param {string} dir
  * @param {string | undefined} configFilename
  * @returns {string | undefined}
  */
 module.exports = async (dir, configFilename = DEFAULT_TS_CONFIG_FILENAME) => {
   return (await isUsingTypescript(dir))
-    ? resolveConfigOptions(`${dir}/${configFilename}`).options.outDir
+    ? resolveConfigOptions(path.join(dir, configFilename)).options.outDir
     : undefined;
 };