diff --git a/rpcs3/Emu/RSX/VK/VKGSRenderTypes.hpp b/rpcs3/Emu/RSX/VK/VKGSRenderTypes.hpp
index c1db493ee9..91974da0d4 100644
--- a/rpcs3/Emu/RSX/VK/VKGSRenderTypes.hpp
+++ b/rpcs3/Emu/RSX/VK/VKGSRenderTypes.hpp
@@ -9,6 +9,8 @@
 #include "Utilities/mutex.h"
 #include "util/asm.hpp"
 
+#include <optional>
+
 // Initial heap allocation values. The heaps are growable and will automatically increase in size to accomodate demands
 #define VK_ATTRIB_RING_BUFFER_SIZE_M 64
 #define VK_TEXTURE_UPLOAD_RING_BUFFER_SIZE_M 64