diff --git a/mm/highmem.c b/mm/highmem.c
index d517cd16a6eb91e8df18f3cbd79cd67621b27d3f..2a07f97dabf11bceb05e69be4143d6cc06a7bd12 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -105,6 +105,7 @@ struct page *kmap_to_page(void *vaddr)
 
 	return virt_to_page(addr);
 }
+EXPORT_SYMBOL(kmap_to_page);
 
 static void flush_all_zero_pkmaps(void)
 {