diff --git a/ceph/ceph-delete-disk b/ceph/ceph-delete-disk
index 9cb1f05..12bc282 100644
--- a/ceph/ceph-delete-disk
+++ b/ceph/ceph-delete-disk
@@ -15,7 +15,7 @@ DISK="$1"; shift
 sgdisk --zap-all $DISK
 
 # Clean hdds with dd
-dd if=/dev/zero of="$DISK" bs=1M count=100 oflag=direct,dsync
+dd if=/dev/zero of="$DISK" bs=1M count=100
 
 # Clean disks such as ssd with blkdiscard instead of dd
 blkdiscard $DISK