diff -u openbsd/src/lib/libssl/hidden/openssl/ssl.h ssl/hidden/openssl/ssl.h
--- openbsd/src/lib/libssl/hidden/openssl/ssl.h	2023-03-15 11:41:52.466146400 -0600
+++ ssl/hidden/openssl/ssl.h	2023-03-15 16:49:29.358377300 -0600
@@ -18,7 +18,11 @@
 #ifndef _LIBSSL_SSL_H_
 #define _LIBSSL_SSL_H_
 
+#ifdef _MSC_VER
+#include <../include/openssl/ssl.h>
+#else
 #include_next <openssl/ssl.h>
+#endif
 #include "ssl_namespace.h"
 
 LSSL_USED(BIO_f_ssl);