diff --git a/mdto/mdto.py b/mdto/mdto.py
index 93f55a5..93125fc 100755
--- a/mdto/mdto.py
+++ b/mdto/mdto.py
@@ -5,6 +5,7 @@
 import hashlib
 from typing import TextIO, List
 from datetime import datetime
+from dataclasses import dataclass
 import lxml.etree as ET
 
 # Make into an optional dependency?