diff --git a/dlls/winhttp/net.c b/dlls/winhttp/net.c
index 1be78d126d4..6eeb1cb5ac9 100644
--- a/dlls/winhttp/net.c
+++ b/dlls/winhttp/net.c
@@ -20,7 +20,6 @@
 #include <assert.h>
 #include <stdarg.h>
 
-#define NONAMELESSUNION
 #include "windef.h"
 #include "winbase.h"
 #include "ws2tcpip.h"
@@ -147,7 +146,7 @@ static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, WCHAR *server, DWORD secu
              */
             memcpy(&chainCopy, chain, sizeof(chainCopy));
             chainCopy.TrustStatus.dwErrorStatus = 0;
-            sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
+            sslExtraPolicyPara.cbSize = sizeof(sslExtraPolicyPara);
             sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
             sslExtraPolicyPara.pwszServerName = server;
             sslExtraPolicyPara.fdwChecks = security_flags;