--- a/src/Library/Binary/CommonSerialization.h
+++ b/src/Library/Binary/CommonSerialization.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <cassert>
+#include <cstdint>
 #include <span>
 #include <array>
 #include <typeinfo>
--- a/src/Media/FFmpegBlobIoContext.h
+++ b/src/Media/FFmpegBlobIoContext.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include "Utility/Memory/Blob.h"
 #include "Utility/Streams/BlobInputStream.h"