diff --git a/include/renderer_vk/renderer_vk.hpp b/include/renderer_vk/renderer_vk.hpp
index a274e1c7..c90b1d4d 100644
--- a/include/renderer_vk/renderer_vk.hpp
+++ b/include/renderer_vk/renderer_vk.hpp
@@ -9,6 +9,7 @@
 #include "vk_sampler_cache.hpp"
 
 class GPU;
+struct SDL_Window;
 
 class RendererVK final : public Renderer {
 	SDL_Window* targetWindow;