diff --git a/ChangeLog b/ChangeLog
index 003b0ee61..2eae7c69b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2008-08-09  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* SoObjects/Appointments/SOGoComponentOccurence.m
+	([SOGoComponentOccurence -changeParticipationStatus:newPartStat]):
+	implemented proxy method.
+
 	* SoObjects/Appointments/SOGoCalendarComponent.m
 	([SOGoCalendarComponent
 	-sendEMailUsingTemplateNamed:_pageNameforOldObject:_oldObjectandNewObject:_newObjecttoAttendees:_attendees]):
diff --git a/SoObjects/Appointments/SOGoComponentOccurence.h b/SoObjects/Appointments/SOGoComponentOccurence.h
index 07413b414..f511e673c 100644
--- a/SoObjects/Appointments/SOGoComponentOccurence.h
+++ b/SoObjects/Appointments/SOGoComponentOccurence.h
@@ -51,6 +51,8 @@
 - (void) setMasterComponent: (iCalRepeatableEntityObject *) newMaster;
 - (void) setIsNew: (BOOL) newIsNew;
 
+- (NSException *) changeParticipationStatus: (NSString *) newPartStat;
+
 @end
 
 #endif /* SOGOCOMPONENTOCCURENCE_H */
diff --git a/SoObjects/Appointments/SOGoComponentOccurence.m b/SoObjects/Appointments/SOGoComponentOccurence.m
index 4f4281d31..244b2a0b4 100644
--- a/SoObjects/Appointments/SOGoComponentOccurence.m
+++ b/SoObjects/Appointments/SOGoComponentOccurence.m
@@ -160,4 +160,11 @@
   [container saveComponent: newEvent];
 }
 
+#warning most of SOGoCalendarComponent and SOGoComponentOccurence share the same external interface... \
+  they should be siblings or SOGoComponentOccurence the parent class of SOGoCalendarComponent...
+- (NSException *) changeParticipationStatus: (NSString *) newPartStat
+{
+  return [container changeParticipationStatus: newPartStat];
+}
+
 @end