diff --git a/lib.nix b/lib.nix
index 80830bf..5d17d58 100644
--- a/lib.nix
+++ b/lib.nix
@@ -108,7 +108,9 @@ in
           )
         );
       };
-      setupScript = pkgs.writeShellScriptBin "setup-postgres" ''
+      setupScript = pkgs.writeShellApplication {
+        name = "setup-postgres";
+        text = ''
         set -euo pipefail
         export PATH=${package}/bin:${pkgs.coreutils}/bin
         POSTGRES_RUN_INITIAL_SCRIPT="false"