diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index 3c8005b68a79..4108ec4ffa7f 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -110,6 +110,7 @@ static int __init h8300_ide_init(void)
 	ide_init_port_data(hwif, index);
 	ide_init_port_hw(hwif, &hw);
 	hwif_setup(hwif);
+	hwif->host_flags = IDE_HFLAG_NO_IO_32BIT;
 	printk(KERN_INFO "ide%d: H8/300 generic IDE interface\n", index);
 
 	idx[0] = index;