diff --git a/systems/palatine-hill/hydra.nix b/systems/palatine-hill/hydra.nix
index 02a0bb6..3cdd57c 100644
--- a/systems/palatine-hill/hydra.nix
+++ b/systems/palatine-hill/hydra.nix
@@ -68,6 +68,7 @@
     };
     prometheus = {
       enable = true;
+      port = 9001;
       exporters.node = {
         enable = true;
         enabledCollectors = [ "systemd" ];