diff --git a/fs/freevxfs/vxfs_extern.h b/fs/freevxfs/vxfs_extern.h
index 927acf7..1cf1fe8 100644
--- a/fs/freevxfs/vxfs_extern.h
+++ b/fs/freevxfs/vxfs_extern.h
@@ -63,7 +63,7 @@
 
 /* vxfs_lookup.c */
 extern struct inode_operations	vxfs_dir_inode_ops;
-extern struct file_operations	vxfs_dir_operations;
+extern const struct file_operations	vxfs_dir_operations;
 
 /* vxfs_olt.c */
 extern int			vxfs_read_olt(struct super_block *, u_long);