diff --git a/fs/befs/super.c b/fs/befs/super.c
index 41f2b4d..ca40f82 100644
--- a/fs/befs/super.c
+++ b/fs/befs/super.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/fs.h>
+#include <asm/page.h> /* for PAGE_SIZE */
 
 #include "befs.h"
 #include "super.h"