diff --git a/gramps/plugins/docgen/odfdoc.py b/gramps/plugins/docgen/odfdoc.py
index 7a0c21be8..692850e12 100644
--- a/gramps/plugins/docgen/odfdoc.py
+++ b/gramps/plugins/docgen/odfdoc.py
@@ -1541,7 +1541,7 @@ class ODFDoc(BaseDoc, TextDoc, DrawDoc):
         Insert a mark at this point in the document.
         """
         if mark:
-            key = escape(mark.key, ESC_MAP)
+            key = escape(mark.key)
             key = key.replace('"', '"')
             if mark.type == INDEX_TYPE_ALP:
                 self.cntnt.write(