diff --git a/scst_local/scst_local.c b/scst_local/scst_local.c
index 55e86cca9..692d8f19f 100644
--- a/scst_local/scst_local.c
+++ b/scst_local/scst_local.c
@@ -1208,7 +1208,9 @@ static int scst_local_change_queue_depth(struct scsi_device *sdev, int qdepth)
 
 static int scst_local_slave_alloc(struct scsi_device *sdev)
 {
+#if !defined(RHEL_MAJOR) || RHEL_MAJOR -0 >= 6
 	queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdev->request_queue);
+#endif
 	return 0;
 }