diff --git a/hosts/wallfacer/configuration.nix b/hosts/wallfacer/configuration.nix
index ae2dc4a..b3bd85a 100644
--- a/hosts/wallfacer/configuration.nix
+++ b/hosts/wallfacer/configuration.nix
@@ -13,14 +13,7 @@ in
     enableNextcloud = true;
   };
 
-  services.hydra = {
-    enable = true;
-    hydraURL = "http://localhost:${builtins.toString hydraPort}";
-    notificationSender = "hydra@localhost";
-    buildMachinesFiles = [];
-    useSubstitutes = true;
 
-  };
   networking.firewall.allowedTCPPorts = [ hydraPort ];
 
   boot.loader.systemd-boot.enable = true;
diff --git a/hosts/ymir/configuration.nix b/hosts/ymir/configuration.nix
index b97b4a6..2173c24 100644
--- a/hosts/ymir/configuration.nix
+++ b/hosts/ymir/configuration.nix
@@ -30,6 +30,15 @@
 
   networking.hostName = "ymir"; # Define your hostname.
 
+  services.hydra = {
+    enable = true;
+    hydraURL = "http://localhost:3000";
+    notificationSender = "hydra@localhost";
+    buildMachinesFiles = [];
+    useSubstitutes = true;
+  };
+
+
   networking.firewall.allowedTCPPorts = [
     8889
     8000