diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 6bf037d..7dc76e7 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -275,7 +275,7 @@
 
 	for (i = 0; i < 2; i++) {
 		static const int irq[] = { 14, 15 };
-		struct ata_port *ap = host->ports[0];
+		struct ata_port *ap = host->ports[i];
 
 		if (ata_port_is_dummy(ap))
 			continue;