diff --git a/nix/nixos-module.nix b/nix/nixos-module.nix
index 3deb1e1..e7c3995 100644
--- a/nix/nixos-module.nix
+++ b/nix/nixos-module.nix
@@ -207,6 +207,7 @@ in
       group = cfg.group;
       home = cfg.stateDir;
     };
+    users.users.${config.services.nginx.user}.extraGroups = [ cfg.group ];
 
     services.postgresql = {
       enable = true;