diff --git a/src/calibre/ebooks/epub/output.py b/src/calibre/ebooks/epub/output.py
index efd27ef8f3..3256e1168a 100644
--- a/src/calibre/ebooks/epub/output.py
+++ b/src/calibre/ebooks/epub/output.py
@@ -285,8 +285,10 @@ class EPUBOutput(OutputFormatPlugin):
             for elem in root.iterdescendants():
                 if getattr(elem, 'text', False):
                     elem.text = special_chars.sub('', elem.text)
+                    elem.text = elem.text.replace(u'\u2011', '-')
                 if getattr(elem, 'tail', False):
                     elem.tail = special_chars.sub('', elem.tail)
+                    elem.tail = elem.tail.replace(u'\u2011', '-')
 
 
 
diff --git a/todo b/todo
index b516e60e7f..75be02c16e 100644
--- a/todo
+++ b/todo
@@ -12,3 +12,5 @@
   - Use a process pool for speed or multiple process for stability (20 per process?)
 
 * Change mobi metadata setter to use author_sort setting from MOBI output plugin instead of mobi.py
+
+* Fix HTML-to-ZIP plugin