diff --git a/fs/pnode.h b/fs/pnode.h
index 5c234e7..23dfe22 100644
--- a/fs/pnode.h
+++ b/fs/pnode.h
@@ -34,7 +34,7 @@
 		struct list_head *);
 int propagate_umount(struct list_head *);
 int propagate_mount_busy(struct vfsmount *, int);
-void mnt_release_group_id(struct vfsmount *);
+void mnt_release_group_id(struct mount *);
 int get_dominating_id(struct vfsmount *mnt, const struct path *root);
 unsigned int mnt_get_count(struct vfsmount *mnt);
 void mnt_set_mountpoint(struct vfsmount *, struct dentry *,