diff --git a/feedgen/entry.py b/feedgen/entry.py
index 89f823c..68f7fa2 100644
--- a/feedgen/entry.py
+++ b/feedgen/entry.py
@@ -36,6 +36,7 @@ class FeedEntry(object):
 		# optional
 		self.__atom_category    = None
 		self.__atom_contributor = None
+		self.__atom_published   = None
 		self.__atom_source      = None
 		self.__atom_rights      = None
 
@@ -157,6 +158,10 @@ class FeedEntry(object):
 				email = etree.SubElement(contrib, 'url')
 				email.text = c.get('uri')
 
+		if self.__atom_published:
+			published   = etree.SubElement(entry, 'published')
+			published.text = self.__atom_published.isoformat()
+
 		if self.__atom_rights:
 			rights = etree.SubElement(feed, 'rights')
 			rights.text = self.__atom_rights