diff --git a/render_utils.py b/render_utils.py
index ecffdda..0b62a3b 100644
--- a/render_utils.py
+++ b/render_utils.py
@@ -1,6 +1,7 @@
 import re
 import os
 
+import ox
 import lxml.etree
 
 from .render_kdenlive import melt_xml