diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 0b49e08d..78e9047 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -11,6 +11,7 @@
 #ifndef	_LINUX_CDROM_H
 #define	_LINUX_CDROM_H
 
+#include <linux/types.h>
 #include <asm/byteorder.h>
 
 /*******************************************************