diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 1d72f99..819545d 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -368,7 +368,7 @@
 
 	/* Revoke setuid/setgid bit on chown/chgrp */
 	if ((iap->ia_valid & ATTR_UID) && iap->ia_uid != inode->i_uid)
-		iap->ia_valid |= ATTR_KILL_SUID;
+		iap->ia_valid |= ATTR_KILL_SUID | ATTR_KILL_PRIV;
 	if ((iap->ia_valid & ATTR_GID) && iap->ia_gid != inode->i_gid)
 		iap->ia_valid |= ATTR_KILL_SGID;
 
@@ -937,7 +937,7 @@
 static void kill_suid(struct dentry *dentry)
 {
 	struct iattr	ia;
-	ia.ia_valid = ATTR_KILL_SUID | ATTR_KILL_SGID;
+	ia.ia_valid = ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV;
 
 	mutex_lock(&dentry->d_inode->i_mutex);
 	notify_change(dentry, &ia);