diff --git a/src/video/windows/SDL_windowsevents.c b/src/video/windows/SDL_windowsevents.c
index dcd183d6f..ca799ff80 100644
--- a/src/video/windows/SDL_windowsevents.c
+++ b/src/video/windows/SDL_windowsevents.c
@@ -644,7 +644,7 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
         {
             RECT rect;
             if (GetUpdateRect(hwnd, &rect, FALSE)) {
-                ValidateRect(hwnd, &rect);
+                ValidateRect(hwnd, NULL);
                 SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_EXPOSED,
                                     0, 0);
             }