diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index a67b9c26804b..8a6f845285ce 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -980,7 +980,7 @@ static int ublk_validate_params(const struct ublk_device *ub)
 		if (p->max_sectors < PAGE_SECTORS)
 			return -EINVAL;
 
-		if (ublk_dev_is_zoned(ub) && !p->chunk_sectors)
+		if (ublk_dev_is_zoned(ub) && !is_power_of_2(p->chunk_sectors))
 			return -EINVAL;
 	} else
 		return -EINVAL;