diff --git a/nixos/modules/misc/ids.nix b/nixos/modules/misc/ids.nix
index e50819d6d00..ad344dfbc11 100644
--- a/nixos/modules/misc/ids.nix
+++ b/nixos/modules/misc/ids.nix
@@ -116,6 +116,7 @@
       dictd = 105;
       couchdb = 106;
       searx = 107;
+      kippo = 108;
 
       # When adding a uid, make sure it doesn't match an existing gid.
 
@@ -210,6 +211,7 @@
       dictd = 105;
       couchdb = 106;
       searx = 107;
+      kippo = 108;
 
       # When adding a gid, make sure it doesn't match an existing uid.
 
diff --git a/nixos/modules/services/networking/kippo.nix b/nixos/modules/services/networking/kippo.nix
index 76dd66013ba..164c38940f7 100644
--- a/nixos/modules/services/networking/kippo.nix
+++ b/nixos/modules/services/networking/kippo.nix
@@ -76,8 +76,9 @@ rec {
     users.extraUsers = singleton {
       name = "kippo";
       description = "kippo web server privilege separation user";
+      uid = 108; # why does config.ids.uids.kippo give an error?
     };
-    users.extraGroups = singleton { name = "kippo"; };
+    users.extraGroups = singleton { name = "kippo";gid=108; };
 
     systemd.services.kippo = with pkgs; {
       description = "Kippo Web Server";