diff --git a/hosts/common/optional/nixos-containers/metrics-server.nix b/hosts/common/optional/nixos-containers/metrics-server.nix
index dd7c746..a880109 100644
--- a/hosts/common/optional/nixos-containers/metrics-server.nix
+++ b/hosts/common/optional/nixos-containers/metrics-server.nix
@@ -130,6 +130,7 @@ in {
       # main prometheus service
       services.prometheus = {
         enable = true;
+        webExternalUrl = "http://${containerIp}:9001";
         port = 9001;
         alertmanagers = [
           {
@@ -229,7 +230,7 @@ in {
         };
       };
       services.prometheus.alertmanager = {
-        webExternalUrl = containerIp;
+        webExternalUrl = "http://${containerIp}:9093";
         enable = true;
         openFirewall = true;
         port = 9093;