diff --git a/scripts/build.js b/scripts/build.js
index 99ce945eb8..faf61e26c0 100755
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -23,7 +23,7 @@ function runBuild(entry, outfile) {
   )
 
   if (
-    !fs.existsSync("../pro/src") &&
+    !fs.existsSync(path.join(__dirname, "../packages/pro/src")) &&
     tsconfigPathPluginContent.compilerOptions?.paths
   ) {
     // If we don't have pro, we cannot bundle backend-core.