diff --git a/dlls/winhttp/request.c b/dlls/winhttp/request.c
index 29b30fc2583..4a64095797a 100644
--- a/dlls/winhttp/request.c
+++ b/dlls/winhttp/request.c
@@ -6096,7 +6096,7 @@ HRESULT WinHttpRequest_create( void **obj )
     if (!(request = calloc( 1, sizeof(*request) ))) return E_OUTOFMEMORY;
     request->IWinHttpRequest_iface.lpVtbl = &winhttp_request_vtbl;
     request->refs = 1;
-    InitializeCriticalSection( &request->cs );
+    InitializeCriticalSectionEx( &request->cs, 0, RTL_CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO );
     request->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": winhttp_request.cs");
     initialize_request( request );
 
diff --git a/dlls/winhttp/session.c b/dlls/winhttp/session.c
index b009639297d..f6b4423600e 100644
--- a/dlls/winhttp/session.c
+++ b/dlls/winhttp/session.c
@@ -319,7 +319,7 @@ HINTERNET WINAPI WinHttpOpen( LPCWSTR agent, DWORD access, LPCWSTR proxy, LPCWST
     session->websocket_receive_buffer_size = 32768;
     session->websocket_send_buffer_size = 32768;
     list_init( &session->cookie_cache );
-    InitializeCriticalSection( &session->cs );
+    InitializeCriticalSectionEx( &session->cs, 0, RTL_CRITICAL_SECTION_FLAG_FORCE_DEBUG_INFO );
     session->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": session.cs");
 
     if (agent && !(session->agent = wcsdup( agent ))) goto end;