diff --git a/mm/memblock.c b/mm/memblock.c
index 93ad42bc8a73c0e6cb1f1e42847d44963c2510ec..f1dba2826d0fc7c09128c4d3e405d793d3d3122b 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -20,6 +20,7 @@
 #include <linux/kmemleak.h>
 #include <linux/seq_file.h>
 #include <linux/memblock.h>
+#include <linux/bootmem.h>
 
 #include <asm/sections.h>
 #include <linux/io.h>