diff --git a/include/psci.h b/include/psci.h
index 3a040f9..922f95f 100644
--- a/include/psci.h
+++ b/include/psci.h
@@ -172,6 +172,7 @@
 		       unsigned long);
 extern void psci_aff_on_finish_entry(void);
 extern void psci_aff_suspend_finish_entry(void);
+extern void psci_register_spd_pm_hook(const spd_pm_ops *);
 #endif /*__ASSEMBLY__*/