diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 239133d..35acc43 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
  */
 
+#include <linux/capability.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/slab.h>