diff --git a/Sources/Kore/IO/Reader.h b/Sources/Kore/IO/Reader.h
index f8d74621..c63a0da7 100644
--- a/Sources/Kore/IO/Reader.h
+++ b/Sources/Kore/IO/Reader.h
@@ -2,7 +2,7 @@
 
 #include <Kore/global.h>
 
-#include <stdint.h>
+#include <stddef.h>
 
 namespace Kore {
 	class Reader {