diff --git a/shell.nix b/shell.nix
index 5185715fd..d305354a1 100644
--- a/shell.nix
+++ b/shell.nix
@@ -10,7 +10,7 @@ let
   drv = haskellPackages.callPackage ./uniworx.nix {};
 
   postgresSchema = pkgs.writeText "schema.sql" ''
-    CREATE USER uniworx;
+    CREATE USER uniworx WITH SUPERUSER;
     CREATE DATABASE uniworx_test;
     GRANT ALL ON DATABASE uniworx_test TO uniworx;
     CREATE DATABASE uniworx;