diff --git a/source/include/Kyty/Sys/SysSync.h b/source/include/Kyty/Sys/SysSync.h
index cf18c2e..aff1454 100644
--- a/source/include/Kyty/Sys/SysSync.h
+++ b/source/include/Kyty/Sys/SysSync.h
@@ -3,6 +3,7 @@
 
 #include "Kyty/Core/Common.h"
 #include "Kyty/Sys/Linux/SysLinuxSync.h"     // IWYU pragma: export
+#include "Kyty/Sys/MacOS/SysMacOSSync.h"     // IWYU pragma: export
 #include "Kyty/Sys/Windows/SysWindowsSync.h" // IWYU pragma: export
 
 #endif /* INCLUDE_KYTY_SYS_SYSSYNC_H_ */