diff --git a/extra/healthcheck.js b/extra/healthcheck.js
index 3a7661082..9e5e4e3d8 100644
--- a/extra/healthcheck.js
+++ b/extra/healthcheck.js
@@ -18,7 +18,7 @@ if (sslKey && sslCert) {
 
 // If host is omitted, the server will accept connections on the unspecified IPv6 address (::) when IPv6 is available and the unspecified IPv4 address (0.0.0.0) otherwise.
 // Dual-stack support for (::)
-let hostname = process.env.UPTIME_KUMA_HOST;
+let hostname = process.env.UPTIME_KUMA_SERVICE_HOST;
 
 // Also read HOST if not *BSD, as HOST is a system environment variable in FreeBSD
 if (!hostname && !FBSD) {