diff --git a/flake.nix b/flake.nix
index a8d364c..28e508c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -35,6 +35,7 @@
           supportLevel = "normal";
           sso = {
             userGroup = "sp.mastodon.users";
+            adminsGroup = "sp.mastodon.admins";
           };
         };
     };