diff --git a/machines/renge/hardware-configuration.nix b/machines/renge/hardware-configuration.nix
index 644e78a..ca34e19 100644
--- a/machines/renge/hardware-configuration.nix
+++ b/machines/renge/hardware-configuration.nix
@@ -54,7 +54,7 @@
         name = "eth0";
         DHCP = "yes";
         domains = [ "sbruder.de" ];
-        address = [ "2a01:4f8:1c1e:88cd::/64" ];
+        address = [ "2a01:4f8:1c1e:88cd::1/64" ];
         gateway = [ "fe80::1" ];
       };
     };
diff --git a/machines/vueko/hardware-configuration.nix b/machines/vueko/hardware-configuration.nix
index f3496dc..51b0803 100644
--- a/machines/vueko/hardware-configuration.nix
+++ b/machines/vueko/hardware-configuration.nix
@@ -40,7 +40,7 @@
         name = "eth0";
         DHCP = "yes";
         domains = [ "sbruder.de" ];
-        address = [ "2a01:4f8:c012:2f4::/64" ];
+        address = [ "2a01:4f8:c012:2f4::1/64" ];
         gateway = [ "fe80::1" ];
       };
     };