1 files changed, 9 insertions, 0 deletions
diff --git a/lib/tests/modules/module-argument-default.nix b/lib/tests/modules/module-argument-default.nix
new file mode 100644
index 00000000000..8dbb783e2df
--- /dev/null
+++ b/lib/tests/modules/module-argument-default.nix
@@ -0,0 +1,9 @@
+{ a ? false, lib, ... }: {
+  options = {
+    result = lib.mkOption {};
+  };
+  config = {
+    _module.args.a = true;
+    result = a;
+  };
+}