diff --git a/next-i18next.config.js b/next-i18next.config.js
index 8a8a6ceaa2b..bacf8af4049 100644
--- a/next-i18next.config.js
+++ b/next-i18next.config.js
@@ -1,6 +1,6 @@
 const i18nConfig = require("./i18n.config.json")
 
-const BUILD_LOCALES = process.env.BUILD_LOCALES ?? false
+const BUILD_LOCALES = process.env.BUILD_LOCALES
 // Supported locales defined in `i18n.config.json`
 const locales = BUILD_LOCALES
   ? BUILD_LOCALES.split(",")
diff --git a/next-sitemap.config.js b/next-sitemap.config.js
index 463e60868a6..5e5ee4e0caa 100644
--- a/next-sitemap.config.js
+++ b/next-sitemap.config.js
@@ -3,7 +3,7 @@ const locales = i18nConfig.map(({ code }) => code)
 
 /** @type {import('next-sitemap').IConfig} */
 module.exports = {
-  siteUrl: process.env.SITE_URL ?? "https://ethereum.org",
+  siteUrl: process.env.SITE_URL || "https://ethereum.org",
   generateRobotsTxt: true,
   transform: async (_, path) => {
     const rootPath = path.split("/")[1]