diff --git a/plat/xilinx/versal/pm_service/pm_api_sys.h b/plat/xilinx/versal/pm_service/pm_api_sys.h
index 72f0076..84867b6 100644
--- a/plat/xilinx/versal/pm_service/pm_api_sys.h
+++ b/plat/xilinx/versal/pm_service/pm_api_sys.h
@@ -75,4 +75,6 @@
 					    enum pm_opchar_type type,
 					    uint32_t *result);
 enum pm_ret_status pm_set_max_latency(uint32_t device_id, uint32_t latency);
+enum pm_ret_status pm_register_notifier(uint32_t device_id, uint32_t event,
+					uint32_t wake, uint32_t enable);
 #endif /* PM_API_SYS_H */