diff --git a/tabellio/pcfdb/sync.py b/tabellio/pcfdb/sync.py
index 4e3c057..de27aa4 100644
--- a/tabellio/pcfdb/sync.py
+++ b/tabellio/pcfdb/sync.py
@@ -772,10 +772,10 @@ class SyncFromPcfDbView(BrowserView):
             object.topics = topics
             if textdefts:
                object.final_version = True
-               object.publication_date = DateTime(textdefts.date.isoformat())
+               object.publication_date = DateTime(textdefts.isoformat())
             elif textprovts:
                object.final_version = False
-               object.publication_date = DateTime(textprovts.date.isoformat())
+               object.publication_date = DateTime(textprovts.isoformat())
             if authors:
                 authors = [self.get_author_intid(x) for x in authors]
                 object.authors = [RelationValue(x) for x in authors if x]