diff --git a/backup-image/sync-btime.sh b/backup-image/sync-btime.sh
index 4121f36..9bc7352 100755
--- a/backup-image/sync-btime.sh
+++ b/backup-image/sync-btime.sh
@@ -120,6 +120,12 @@ if [ $hT -eq 1 ]; then
       echo "Byte mismatch with $2.time !";
       exit 1;
   fi
+  (sha512sum "$3/times/$2.time" > "$uuidTmp/$2.time.sum") && dd "if=$uuidTmp/$2.time.sum" bs=128 count=1 "of=$uuidTmp/$2-time.hash";
+  cmp -s "$uuidTmp/$2-time.hash" "$3/hsums/$2-time.hash";
+  if [ $? -ne 0 ]; then
+      echo "Hash mismatch with $2.time !";
+      exit 1;
+  fi
 fi
 rm -rf $uuidTmp;
 echo "Finished!";