diff --git a/configs/retiolum.nix b/configs/retiolum.nix
index 1f01c45..cd814aa 100644
--- a/configs/retiolum.nix
+++ b/configs/retiolum.nix
@@ -11,25 +11,6 @@
     "42:0:ca48:f98f:63d7:31ce:922b:245d" = [ "go" ];
   };
 
-  networking.retiolum = {
-    scardanelli = {
-      ipv4 = "10.243.2.2";
-      ipv6 = "42:0:3c46:4007:5bce:f1bc:606b:2b18";
-    };
-    homeros = {
-      ipv4 = "10.243.2.1";
-      ipv6 = "42:0:3c46:53e:e63d:e62a:56ea:c705";
-    };
-    catullus = {
-      ipv4 = "10.243.2.3";
-      ipv6 = "42:0:3c46:3ec0:7aad:d1d5:9842:da4c";
-    };
-    wilde = {
-      ipv4 = "10.243.2.4";
-      ipv6 = "42:0:3c46:907c:1fb8:b74f:c59b:1ee3";
-    };
-  }.${config.networking.hostName};
-
   environment.etc."tinc/retiolum/rsa_key.priv" = {
     text = builtins.readFile <secrets/retiolum.key>;
     mode = "400";
diff --git a/systems/homeros/configuration.nix b/systems/homeros/configuration.nix
index 85ef1c8..ba6caa2 100644
--- a/systems/homeros/configuration.nix
+++ b/systems/homeros/configuration.nix
@@ -36,6 +36,11 @@
 
   services.xserver.videoDrivers = [ "intel" ];
 
+  networking.retiolum = {
+    ipv4 = "10.243.2.1";
+    ipv6 = "42:0:3c46:53e:e63d:e62a:56ea:c705";
+  };
+
   networking.hostName = "homeros";
 
   system.stateVersion = "18.09";
diff --git a/systems/scardanelli/configuration.nix b/systems/scardanelli/configuration.nix
index 7ddf3d5..5417976 100644
--- a/systems/scardanelli/configuration.nix
+++ b/systems/scardanelli/configuration.nix
@@ -28,5 +28,10 @@ in {
 
   networking.hostName = "scardanelli";
 
+  networking.retiolum = {
+    ipv4 = "10.243.2.2";
+    ipv6 = "42:0:3c46:4007:5bce:f1bc:606b:2b18";
+  };
+
   system.stateVersion = "18.09";
 }
diff --git a/systems/wilde/configuration.nix b/systems/wilde/configuration.nix
index 5e90c5d..6baeaa3 100644
--- a/systems/wilde/configuration.nix
+++ b/systems/wilde/configuration.nix
@@ -36,5 +36,10 @@
 
   networking.hostName = "wilde";
 
+  networking.retiolum = {
+    ipv4 = "10.243.2.4";
+    ipv6 = "42:0:3c46:907c:1fb8:b74f:c59b:1ee3";
+  };
+
   system.stateVersion = "19.03";
 }