diff --git a/src/calibre/ebooks/docx/fields.py b/src/calibre/ebooks/docx/fields.py
index adf0b448d6..82e2c206d2 100644
--- a/src/calibre/ebooks/docx/fields.py
+++ b/src/calibre/ebooks/docx/fields.py
@@ -105,7 +105,6 @@ class Fields(object):
 
     def __call__(self, doc, log):
         all_ids = frozenset(XPath('//*/@w:id')(doc))
-        # import pydevd;pydevd.settrace()
         c = 0
         while self.index_bookmark_prefix in all_ids:
             c += 1