diff --git a/packages/react-email/src/commands/build.ts b/packages/react-email/src/commands/build.ts
index 0fe3fe1e1a..4fd76d4502 100644
--- a/packages/react-email/src/commands/build.ts
+++ b/packages/react-email/src/commands/build.ts
@@ -78,14 +78,15 @@ const setNextEnvironmentVariablesForBuild = async (
   const nextConfigContents = `
 const path = require('path');
 const emailsDirRelativePath = path.normalize('${emailsDirRelativePath}');
-const userProjectLocation = '${process.cwd().replace(/\\/g, '/')}';
+const userProjectLocation = path.resolve(__dirname, "../");
+const reactEmailDir = ".react-email";
 /** @type {import('next').NextConfig} */
 module.exports = {
   env: {
     NEXT_PUBLIC_IS_BUILDING: 'true',
     EMAILS_DIR_RELATIVE_PATH: emailsDirRelativePath,
     EMAILS_DIR_ABSOLUTE_PATH: path.resolve(userProjectLocation, emailsDirRelativePath),
-    PREVIEW_SERVER_LOCATION: '${builtPreviewAppPath.replace(/\\/g, '/')}',
+    PREVIEW_SERVER_LOCATION: path.join(userProjectLocation, reactEmailDir),
     USER_PROJECT_LOCATION: userProjectLocation
   },
   serverExternalPackages: ['esbuild'],