diff --git a/src/render/software/SDL_render_sw.c b/src/render/software/SDL_render_sw.c
index aa72c9364..d8e2d872d 100755
--- a/src/render/software/SDL_render_sw.c
+++ b/src/render/software/SDL_render_sw.c
@@ -183,6 +183,7 @@ SW_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)
 
     if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED) {
         data->surface = NULL;
+        data->window = NULL;
     }
 }