diff --git a/include/xen/balloon.h b/include/xen/balloon.h
index cc2e1a7..a4c1c6a 100644
--- a/include/xen/balloon.h
+++ b/include/xen/balloon.h
@@ -29,6 +29,9 @@
 		bool highmem);
 void free_xenballooned_pages(int nr_pages, struct page **pages);
 
+struct page *get_balloon_scratch_page(void);
+void put_balloon_scratch_page(void);
+
 struct device;
 #ifdef CONFIG_XEN_SELFBALLOONING
 extern int register_xen_selfballooning(struct device *dev);