diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3e8807e..040a04a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1517,7 +1517,7 @@
 }
 #endif
 
-int vma_wants_writenotify(struct vm_area_struct *vma);
+int vma_wants_writenotify(struct vm_area_struct *vma, pgprot_t vm_page_prot);
 
 extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
 			       spinlock_t **ptl);