diff --git a/lib/server.js b/lib/server.js
index f4b2e392..bbe88c5d 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -10,7 +10,7 @@ const {
   VERCEL_URL
 } = process.env
 
-const url = VERCEL_URL || PRIVATE_BASE_URL
+const url = PRIVATE_BASE_URL || VERCEL_URL
 
 module.exports = hazel({
   interval,