diff --git a/include/asm-ia64/kdebug.h b/include/asm-ia64/kdebug.h
index c195a9a..aed7142 100644
--- a/include/asm-ia64/kdebug.h
+++ b/include/asm-ia64/kdebug.h
@@ -40,6 +40,8 @@
 
 extern int register_die_notifier(struct notifier_block *);
 extern int unregister_die_notifier(struct notifier_block *);
+extern int register_page_fault_notifier(struct notifier_block *);
+extern int unregister_page_fault_notifier(struct notifier_block *);
 extern struct atomic_notifier_head ia64die_chain;
 
 enum die_val {