diff --git a/plat/hisilicon/hikey/include/hi6553.h b/plat/hisilicon/hikey/include/hi6553.h
index 76cb8ff..a80d36d 100644
--- a/plat/hisilicon/hikey/include/hi6553.h
+++ b/plat/hisilicon/hikey/include/hi6553.h
@@ -19,6 +19,7 @@
 #define DISABLE6_XO_CLK_RF2			(1 << 4)
 
 #define HI6553_VERSION_REG			(PMUSSI_BASE + (0x000 << 2))
+#define HI6553_IRQ2_MASK			(PMUSSI_BASE + (0x008 << 2))
 #define HI6553_ENABLE2_LDO1_8			(PMUSSI_BASE + (0x029 << 2))
 #define HI6553_DISABLE2_LDO1_8			(PMUSSI_BASE + (0x02a << 2))
 #define HI6553_ONOFF_STATUS2_LDO1_8		(PMUSSI_BASE + (0x02b << 2))