diff --git a/include/linux/libata.h b/include/linux/libata.h
index d81cecd..4dff3cf 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -110,6 +110,7 @@
 	ATA_DEF_QUEUE		= 1,
 	ATA_MAX_QUEUE		= 1,
 	ATA_MAX_SECTORS		= 200,	/* FIXME */
+	ATA_MAX_SECTORS_LBA48	= 65535,
 	ATA_MAX_BUS		= 2,
 	ATA_DEF_BUSY_WAIT	= 10000,
 	ATA_SHORT_PAUSE		= (HZ >> 6) + 1,