diff --git a/include/boo/IGraphicsContext.hpp b/include/boo/IGraphicsContext.hpp
index 8053a52..334822d 100644
--- a/include/boo/IGraphicsContext.hpp
+++ b/include/boo/IGraphicsContext.hpp
@@ -14,7 +14,7 @@ class IGraphicsContext {
 
 public:
   enum class EGraphicsAPI {
-    None = 0,
+    Invalid = 0,
     OpenGL3_3 = 1,
     OpenGL4_2 = 2,
     Vulkan = 3,
@@ -26,7 +26,7 @@ public:
   };
 
   enum class EPixelFormat {
-    None = 0,
+    Invalid = 0,
     RGBA8 = 1, /* Default */
     RGBA16 = 2,
     RGBA8_Z24 = 3,
diff --git a/include/boo/audiodev/MIDIDecoder.hpp b/include/boo/audiodev/MIDIDecoder.hpp
index f4f3a99..793c977 100644
--- a/include/boo/audiodev/MIDIDecoder.hpp
+++ b/include/boo/audiodev/MIDIDecoder.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <vector>
+#include <cstdint>
 
 namespace boo {
 class IMIDIReader;
diff --git a/include/boo/graphicsdev/Vulkan.hpp b/include/boo/graphicsdev/Vulkan.hpp
index e073051..a5d2600 100644
--- a/include/boo/graphicsdev/Vulkan.hpp
+++ b/include/boo/graphicsdev/Vulkan.hpp
@@ -9,6 +9,7 @@
 #include "boo/BooObject.hpp"
 #include "boo/IGraphicsContext.hpp"
 #include "boo/System.hpp"
+#include "boo/IWindow.hpp"
 #include "boo/graphicsdev/IGraphicsDataFactory.hpp"
 #include "boo/graphicsdev/VulkanDispatchTable.hpp"