diff --git a/modules/homelab/services/uptime-kuma/default.nix b/modules/homelab/services/uptime-kuma/default.nix
index 51afa2d..dd1925a 100644
--- a/modules/homelab/services/uptime-kuma/default.nix
+++ b/modules/homelab/services/uptime-kuma/default.nix
@@ -59,7 +59,7 @@ in
       enable = true;
       settings = 
       {
-        PORT = cfg.port;
+        PORT = ${toString cfg.port};
       };
     };