diff --git a/source/include/Kyty/Sys/SysStdio.h b/source/include/Kyty/Sys/SysStdio.h
index 01c1f68..b73e05c 100644
--- a/source/include/Kyty/Sys/SysStdio.h
+++ b/source/include/Kyty/Sys/SysStdio.h
@@ -3,6 +3,7 @@
 
 #include "Kyty/Core/Common.h"
 #include "Kyty/Sys/Linux/SysLinuxStdio.h"     // IWYU pragma: export
+#include "Kyty/Sys/MacOS/SysMacOSStdio.h"     // IWYU pragma: export
 #include "Kyty/Sys/Windows/SysWindowsStdio.h" // IWYU pragma: export
 
 #endif /* INCLUDE_KYTY_SYS_SYSSTDIO_H_ */