diff --git a/hosts/harbor/configuration.nix b/hosts/harbor/configuration.nix
index ed7902f..2eed363 100644
--- a/hosts/harbor/configuration.nix
+++ b/hosts/harbor/configuration.nix
@@ -101,6 +101,9 @@
   hive.calibre.enable = true;
   hive.calibre.instanceFQDN = "calibre.jroeger.de";
   hive.calibre.libraries = ["Rote Bücher" "Technik" "Wissenschaft oder so"];
+  hive.korrosync.enable = true;
+  hive.korrosync.localPort = 7416;
+  hive.korrosync.instanceFQDN = "korrosync.jroeger.de";
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
diff --git a/hosts/harbor/default.nix b/hosts/harbor/default.nix
index 0414e96..6c3296f 100644
--- a/hosts/harbor/default.nix
+++ b/hosts/harbor/default.nix
@@ -22,6 +22,7 @@
       self.nixosModules.wireguard-server
       self.nixosModules.matrix
       self.nixosModules.calibre
+      self.nixosModules.korrosync-hive
     ];
   };
 }