diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index 65aebfa66fe5..ea3eb4144b66 100644
--- a/arch/arm/mach-sa1100/irq.c
+++ b/arch/arm/mach-sa1100/irq.c
@@ -73,7 +73,7 @@ static int sa1100_normal_irqdomain_map(struct irq_domain *d,
 	return 0;
 }
 
-static struct irq_domain_ops sa1100_normal_irqdomain_ops = {
+static const struct irq_domain_ops sa1100_normal_irqdomain_ops = {
 	.map = sa1100_normal_irqdomain_map,
 	.xlate = irq_domain_xlate_onetwocell,
 };