diff --git a/nix/module.nix b/nix/module.nix
index 14b8e43..bc8d3aa 100644
--- a/nix/module.nix
+++ b/nix/module.nix
@@ -224,7 +224,7 @@ in
         ensureDatabases = [ cfg.databaseName ];
         extensions = ps: with ps; [ pgjwt ];
         authentication = lib.mkOverride 11 ''
-          local all all trust
+          local ${cfg.databaseName} all trust
         '';
       };