diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index 7c1b27ac7d3c..216c0f5680d2 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -137,6 +137,7 @@ static void i8259_unmask_irq(unsigned int irq_nr)
 static struct irq_chip i8259_pic = {
 	.typename	= " i8259    ",
 	.mask		= i8259_mask_irq,
+	.disable	= i8259_mask_irq,
 	.unmask		= i8259_unmask_irq,
 	.mask_ack	= i8259_mask_and_ack_irq,
 };
diff --git a/arch/ppc/syslib/i8259.c b/arch/ppc/syslib/i8259.c
index 1e5a00a4b5f5..559f27c6aefe 100644
--- a/arch/ppc/syslib/i8259.c
+++ b/arch/ppc/syslib/i8259.c
@@ -127,6 +127,7 @@ static void i8259_unmask_irq(unsigned int irq_nr)
 static struct irq_chip i8259_pic = {
 	.typename	= " i8259    ",
 	.mask		= i8259_mask_irq,
+	.disable	= i8259_mask_irq,
 	.unmask		= i8259_unmask_irq,
 	.mask_ack	= i8259_mask_and_ack_irq,
 };