diff --git a/pykolab/xml/event.py b/pykolab/xml/event.py
--- a/pykolab/xml/event.py
+++ b/pykolab/xml/event.py
@@ -351,6 +351,8 @@
         # NOTE: Make sure to list(set()) or duplicates may arise
         for attr in list(set(ical_event.singletons)):
             if ical_event.has_key(attr):
+                if isinstance(ical_event[attr], list):
+                    ical_event[attr] = ical_event[attr][0];
                 self.set_from_ical(attr.lower(), ical_event[attr])
 
         # NOTE: Make sure to list(set()) or duplicates may arise
diff --git a/pykolab/xml/todo.py b/pykolab/xml/todo.py
--- a/pykolab/xml/todo.py
+++ b/pykolab/xml/todo.py
@@ -95,6 +95,8 @@
 
         for attr in list(set(ical_todo.singletons)):
             if ical_todo.has_key(attr):
+                if isinstance(ical_todo[attr], list):
+                    ical_todo[attr] = ical_todo[attr][0];
                 self.set_from_ical(attr.lower(), ical_todo[attr])
 
         for attr in list(set(ical_todo.multiple)):