diff --git a/include/renderer.hpp b/include/renderer.hpp
index f8e57bb3..cd1ee53b 100644
--- a/include/renderer.hpp
+++ b/include/renderer.hpp
@@ -16,7 +16,7 @@ enum class RendererType : s8 {
 };
 
 class GPU;
-class SDL_Window;
+struct SDL_Window;
 
 class Renderer {
   protected: