diff --git a/extra/healthcheck.js b/extra/healthcheck.js
index 7c3a7eb42..3a7661082 100644
--- a/extra/healthcheck.js
+++ b/extra/healthcheck.js
@@ -25,7 +25,7 @@ if (!hostname && !FBSD) {
     hostname = process.env.HOST;
 }
 
-const port = parseInt(process.env.UPTIME_KUMA_PORT || process.env.PORT || 3001);
+const port = parseInt(process.env.UPTIME_KUMA_SERVICE_PORT || process.env.PORT || 3001);
 
 let options = {
     host: hostname || "127.0.0.1",