Index: src/incidenceformatter.cpp
===================================================================
--- src/incidenceformatter.cpp
+++ src/incidenceformatter.cpp
@@ -2777,16 +2777,17 @@
     // Determine if this incidence is in my calendar (and owned by me)
     Incidence::Ptr existingIncidence;
     if (incBase && helper->calendar()) {
-        existingIncidence = helper->calendar()->incidence(incBase->uid());
+        existingIncidence = helper->calendar()->incidence(incBase->uid(), incBase->recurrenceId());
 
         if (!incidenceOwnedByMe(helper->calendar(), existingIncidence)) {
             existingIncidence.clear();
         }
         if (!existingIncidence) {
             const Incidence::List list = helper->calendar()->incidences();
             for (Incidence::List::ConstIterator it = list.begin(), end = list.end(); it != end; ++it) {
                 if ((*it)->schedulingID() == incBase->uid() &&
-                        incidenceOwnedByMe(helper->calendar(), *it)) {
+                        incidenceOwnedByMe(helper->calendar(), *it) &&
+                    (*it)->recurrenceId() == incBase->recurrenceId()) {
                     existingIncidence = *it;
                     break;
                 }