diff --git a/core/views_logbooks.py b/core/views_logbooks.py
index 0a90d7e..ffd1243 100644
--- a/core/views_logbooks.py
+++ b/core/views_logbooks.py
@@ -75,7 +75,6 @@ def expedition(request, expeditionname):
             prow.append(pcell)
         personexpeditiondays.append({"personexpedition":personexpedition, "personrow":prow})
         
-    message = ""
     if "reload" in request.GET:
         LoadLogbookForExpedition(this_expedition)
     return render_with_context(request,'expedition.html', {'expedition': this_expedition, 'expeditions':expeditions, 'personexpeditiondays':personexpeditiondays, 'settings':settings, 'dateditems': dateditems })
@@ -109,7 +108,7 @@ def person(request, first_name='', last_name='', ):
 def GetPersonChronology(personexpedition):
     res = { }
     for persontrip in personexpedition.persontrip_set.all():
-        a = res.setdefault(persontrip.date, { })
+        a = res.setdefault(persontrip.logbook_entry.date, { })
         a.setdefault("persontrips", [ ]).append(persontrip)
 
     for personrole in personexpedition.survexpersonrole_set.all():