diff --git a/desktop_version/src/Graphics.cpp b/desktop_version/src/Graphics.cpp
index 468027a8..4adab7de 100644
--- a/desktop_version/src/Graphics.cpp
+++ b/desktop_version/src/Graphics.cpp
@@ -3279,11 +3279,21 @@ void Graphics::processVsync()
 	SDL_SetHintWithPriority(SDL_HINT_RENDER_VSYNC, vsync ? "1" : "0", SDL_HINT_OVERRIDE);
 
 	// FIXME: Sigh... work around SDL2 bug where the VSync hint is only listened to at renderer creation
-	SDL_DestroyRenderer(screenbuffer->m_renderer);
+	if (screenbuffer == NULL)
+	{
+		return;
+	}
+	if (screenbuffer->m_renderer != NULL)
+	{
+		SDL_DestroyRenderer(screenbuffer->m_renderer);
+	}
 	screenbuffer->m_renderer = SDL_CreateRenderer(screenbuffer->m_window, -1, 0);
 
 	// Ugh, have to re-create m_screenTexture as well, otherwise the screen will be black...
-	SDL_DestroyTexture(screenbuffer->m_screenTexture);
+	if (screenbuffer->m_screenTexture != NULL)
+	{
+		SDL_DestroyTexture(screenbuffer->m_screenTexture);
+	}
 	// FIXME: This is duplicated from Screen::init()!
 	screenbuffer->m_screenTexture = SDL_CreateTexture(
 		screenbuffer->m_renderer,