diff --git a/scst/src/scst_lib.c b/scst/src/scst_lib.c
index 307779020..53347a782 100644
--- a/scst/src/scst_lib.c
+++ b/scst/src/scst_lib.c
@@ -8000,7 +8000,15 @@ static struct request *__blk_map_kern_sg(struct request_queue *q,
 
 	if (bw != NULL) {
 		atomic_set(&bw->bios_inflight, bios);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
+	/*
+	 * See also patch "block: split out request-only flags into a new namespace"
+	 * (commit e806402130c9).
+	 */
 		rq->cmd_flags |= REQ_COPY_USER;
+#else
+		rq->rq_flags |= RQF_COPY_USER;
+#endif
 	}
 
 out: