diff --git a/include/linux/swap.h b/include/linux/swap.h
index c75954f2d868213a2abbac0a9f3d8ddef3fb2fbb..239f520cc49ec1c55561e2ac9e085629e489b03a 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -7,6 +7,8 @@
 #include <linux/mmzone.h>
 #include <linux/list.h>
 #include <linux/sched.h>
+#include <linux/pagemap.h>
+
 #include <asm/atomic.h>
 #include <asm/page.h>