diff --git a/arch/arm/mach-shmobile/board-kzm9g-reference.c b/arch/arm/mach-shmobile/board-kzm9g-reference.c
index 9ec98871e292ac30488143e57ca599abd4a46ab9..1694a16092965240b8bb91d0d9c15f1500fc1c58 100644
--- a/arch/arm/mach-shmobile/board-kzm9g-reference.c
+++ b/arch/arm/mach-shmobile/board-kzm9g-reference.c
@@ -52,7 +52,6 @@ DT_MACHINE_START(KZM9G_DT, "kzm9g-reference")
 	.smp		= smp_ops(sh73a0_smp_ops),
 	.map_io		= sh73a0_map_io,
 	.init_early	= sh73a0_init_delay,
-	.nr_irqs	= NR_IRQS_LEGACY,
 	.init_machine	= kzm_init,
 	.init_late	= shmobile_init_late,
 	.dt_compat	= kzm9g_boards_compat_dt,