diff --git a/modules/matrix.nix b/modules/matrix.nix
index 2d41da9..2618fde 100644
--- a/modules/matrix.nix
+++ b/modules/matrix.nix
@@ -122,7 +122,7 @@
     registration_shared_secret = {
       mode = "0400";
       owner = config.users.users.root.name;
-      group = config.users.users.nobody.group;
+      group = config.users.users.root.group;
       sopsFile = ../secrets/matrix.json;
       format = "json";
     };