diff --git a/sys/ia64/ia64/sapic.c b/sys/ia64/ia64/sapic.c
index 0830a8293cf2..b895a7eb1ac4 100644
--- a/sys/ia64/ia64/sapic.c
+++ b/sys/ia64/ia64/sapic.c
@@ -142,7 +142,7 @@ sapic_enable(struct sapic *sa, int input, int vector,
 	rte.rte_destination_eid = (lid >> 16) & 255;
 	rte.rte_trigger_mode = trigger_mode;
 	rte.rte_polarity = polarity;
-	rte.rte_delivery_mode = 0; /* fixed */
+	rte.rte_delivery_mode = SAPIC_DELMODE_LOWPRI;
 	rte.rte_vector = vector;
 	sapic_write_rte(sa, input, &rte);
 }
diff --git a/sys/ia64/include/sapicvar.h b/sys/ia64/include/sapicvar.h
index 298b4bc60cbc..ae3f154986ba 100644
--- a/sys/ia64/include/sapicvar.h
+++ b/sys/ia64/include/sapicvar.h
@@ -42,6 +42,13 @@ struct sapic {
 #define SAPIC_POLARITY_HIGH	0
 #define SAPIC_POLARITY_LOW	1
 
+#define SAPIC_DELMODE_FIXED	0
+#define SAPIC_DELMODE_LOWPRI	1
+#define SAPIC_DELMODE_PMI	2
+#define SAPIC_DELMODE_NMI	4
+#define SAPIC_DELMODE_INIT	5
+#define SAPIC_DELMODE_EXTINT	7
+
 struct sapic	*sapic_create(int id, int base, u_int64_t address);
 void		sapic_enable(struct sapic *sa, int input, int vector,
 			     int trigger_mode, int polarity);