diff --git a/plat/xilinx/versal/pm_service/pm_svc_main.h b/plat/xilinx/versal/pm_service/pm_svc_main.h
index 71329ca..4f8dc2b 100644
--- a/plat/xilinx/versal/pm_service/pm_svc_main.h
+++ b/plat/xilinx/versal/pm_service/pm_svc_main.h
@@ -14,4 +14,5 @@
 			uint64_t x4, void *cookie, void *handle,
 			uint64_t flags);
 
+int pm_register_sgi(unsigned int sgi_num);
 #endif /* PM_SVC_MAIN_H */