diff --git a/src/engine/Model.hpp b/src/engine/Model.hpp
index d21a3a9..127d886 100644
--- a/src/engine/Model.hpp
+++ b/src/engine/Model.hpp
@@ -11,6 +11,7 @@
 #include <algorithm>
 #include <filesystem>
 #include <memory>
+#include <optional>
 #include <vector>
 
 #include "Device.hpp"
diff --git a/src/engine/image/ImageView.hpp b/src/engine/image/ImageView.hpp
index 77ad5f0..ef26e80 100644
--- a/src/engine/image/ImageView.hpp
+++ b/src/engine/image/ImageView.hpp
@@ -6,6 +6,8 @@
 
 #include <vulkan/vulkan.hpp>
 
+#include <optional>
+
 #include "Image.hpp"
 #include "ImageHandle.hpp"
 #include "Sampler.hpp"