From e3e2753b5bc7154bf2320e6cfac0c1b461d0348b Mon Sep 17 00:00:00 2001
From: Gabriel Roldan <luisgabrielroldan@gmail.com>
Date: Thu, 21 May 2026 17:44:20 -0300
Subject: [PATCH] Restore struct? default to false to suppress x-struct
 population

The upstream sync (#4, through v3.22.3) reverted the ActiveProspect fork
patch that defaulted :struct? to false in build_schema/2, causing the
x-struct vendor extension to be auto-populated with module names in
generated specs. This restores the prior behavior.
---
 lib/open_api_spex.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/open_api_spex.ex b/lib/open_api_spex.ex
index 9db3db9d..9ed88601 100644
--- a/lib/open_api_spex.ex
+++ b/lib/open_api_spex.ex
@@ -306,7 +306,7 @@ defmodule OpenApiSpex do
       body
       |> Map.delete(:__struct__)
       |> update_in([:"x-struct"], fn struct_module ->
-        if Keyword.get(opts, :struct?, true) do
+        if Keyword.get(opts, :struct?, false) do
           struct_module || module
         else
           struct_module