--- a/pycocumalib/CoCuMa_Server.py
+++ b/pycocumalib/CoCuMa_Server.py
@@ -166,7 +166,7 @@
         return self._vcalendar.add(jour)
     def DelJournal(self, handle):
         "Delete Calendar Entry"
-        self._cards_modified = True
+        self._cal_modified = True
         return self._vcalendar.delete(handle)
         
 class LogFile: