diff --git a/scst/src/dev_handlers/scst_vdisk.c b/scst/src/dev_handlers/scst_vdisk.c
index 064be54bf..2471793b2 100644
--- a/scst/src/dev_handlers/scst_vdisk.c
+++ b/scst/src/dev_handlers/scst_vdisk.c
@@ -4654,8 +4654,10 @@ static void blockio_exec_rw(struct vdisk_cmd_params *p, bool write, bool fua)
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) || \
 	defined(RHEL_MAJOR) && RHEL_MAJOR -0 >= 6
 					bio->bi_rw |= REQ_SYNC;
-#else
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29)
 					bio->bi_rw |= 1 << BIO_RW_SYNCIO;
+#else
+					bio->bi_rw |= 1 << BIO_RW_SYNC;
 #endif
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) || \
 	defined(RHEL_MAJOR) && RHEL_MAJOR -0 >= 6