diff --git a/libkcal/calendar.cpp b/libkcal/calendar.cpp
index 5918a749..f7988077 100644
--- a/libkcal/calendar.cpp
+++ b/libkcal/calendar.cpp
@@ -479,8 +479,10 @@ bool Calendar::deleteIncidence( Incidence *incidence )
       IncidenceList il = incidence->childIncidences();
       IncidenceListIterator it;
       it = il.begin();
-      parentIncidence = this->incidence(*it);
-      parentIncidence->deleteChildIncidence(incidence->uid());
+      if (it != il.end()) {
+      	parentIncidence = this->incidence(*it);
+      	parentIncidence->deleteChildIncidence(incidence->uid());
+      }
     }
     else {
       // Delete all children as well