diff --git a/system/virtualization/docker/n8n/default.nix b/system/virtualization/docker/n8n/default.nix
index 87f9626..80dd16c 100644
--- a/system/virtualization/docker/n8n/default.nix
+++ b/system/virtualization/docker/n8n/default.nix
@@ -52,7 +52,7 @@ in {
                 "traefik.http.routers.${name}.service" = "${name}";
                 "traefik.http.routers.${name}.tls.certResolver" = "cloudflare";
                 
-                "traefik.http.services.${name}.loadbalancer.server.url" = "http://192.168.100.10:${hostPort}";
+                "traefik.http.services.${name}.loadbalancer.server.url" = "http://192.168.100.10:${builtins.toString hostPort}";
             };
 
             extraOptions = lib.mkIf config.sysconfig.docker.nvidia [
@@ -60,7 +60,7 @@ in {
             ];
 
             ports = [
-                "${hostPort}:5678"
+                "${builtins.toString hostPort}:5678"
             ];
 
             volumes = [