diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index 4d94354..459c023 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -934,7 +934,7 @@
 	}	
 
 	pmz_get_port_A(uap)->flags |= PMACZILOG_FLAG_IS_IRQ_ON;
-	if (request_irq(uap->port.irq, pmz_interrupt, SA_SHIRQ, "PowerMac Zilog", uap)) {
+	if (request_irq(uap->port.irq, pmz_interrupt, IRQF_SHARED, "PowerMac Zilog", uap)) {
 		dev_err(&uap->dev->ofdev.dev,
 			"Unable to register zs interrupt handler.\n");
 		pmz_set_scc_power(uap, 0);