diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index c16578af3a77..2c0678b03f66 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -811,6 +811,11 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
 	 * update tlock vector
 	 */
       grantLock:
+	if (type & tlckDTREE) {
+		struct dt_lock *dtlck = (struct dt_lock *) &tlck->lock;
+
+		dtlck->index = 0;
+	}
 	tlck->type |= type;
 
 	return tlck;