diff --git a/src/lib/WireGuard.js b/src/lib/WireGuard.js
index b4cd2f82..94d987d4 100644
--- a/src/lib/WireGuard.js
+++ b/src/lib/WireGuard.js
@@ -99,7 +99,7 @@ module.exports = class WireGuard {
 [Interface]
 PrivateKey = ${config.server.privateKey}
 Address = ${config.server.address}${address.subnet}
-ListenPort = WG_PORT
+ListenPort = ${WG_PORT}
 PreUp = ${WG_PRE_UP}
 PostUp = ${WG_POST_UP}
 PreDown = ${WG_PRE_DOWN}