diff --git a/include/linux/fs.h b/include/linux/fs.h
index f5075e0..4f1e8ce 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -883,6 +883,7 @@
 extern int lease_modify(struct file_lock **, int);
 extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
 extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
+extern struct seq_operations locks_seq_operations;
 
 struct fasync_struct {
 	int	magic;