diff --git a/lib/tests/modules.sh b/lib/tests/modules.sh
index 789d8e00dda8..c899953b065f 100755
--- a/lib/tests/modules.sh
+++ b/lib/tests/modules.sh
@@ -95,7 +95,10 @@ checkConfigOutput '^true$' config.result ./module-argument-default.nix
 checkConfigOutput '^true$' config.assertion ./gvariant.nix
 
 # https://github.com/NixOS/nixpkgs/pull/131205
+# We currently throw this error already in `config`, but throwing in `config.wrong1` would be acceptable.
 checkConfigError 'It seems as if you.re trying to declare an option by placing it into .config. rather than .options.' config.wrong1 ./error-mkOption-in-config.nix
+# We currently throw this error already in `config`, but throwing in `config.nest.wrong2` would be acceptable.
+checkConfigError 'It seems as if you.re trying to declare an option by placing it into .config. rather than .options.' config.nest.wrong2 ./error-mkOption-in-config.nix
 checkConfigError 'The option .sub.wrong2. does not exist. Definition values:' config.sub ./error-mkOption-in-submodule-config.nix
 checkConfigError '.*This can happen if you e.g. declared your options in .types.submodule.' config.sub ./error-mkOption-in-submodule-config.nix