diff --git a/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp b/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp
index b04ae22ba..0a8adb8b9 100644
--- a/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp
+++ b/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp
@@ -260,6 +260,7 @@ void ConferenceInfoModel::setDescription(const QString& description){
 
 void ConferenceInfoModel::setParticipants(ParticipantListModel * participants){
 	mConferenceInfo->setParticipants(participants->getParticipants());
+	emit participantsChanged();
 }
 
 void ConferenceInfoModel::setTimeZoneModel(TimeZoneModel * model){
diff --git a/linphone-app/ui/modules/Linphone/Chat/ChatCalendarMessage.qml b/linphone-app/ui/modules/Linphone/Chat/ChatCalendarMessage.qml
index e7022c1f3..61a34add5 100644
--- a/linphone-app/ui/modules/Linphone/Chat/ChatCalendarMessage.qml
+++ b/linphone-app/ui/modules/Linphone/Chat/ChatCalendarMessage.qml
@@ -212,7 +212,11 @@ Loader{
 					Layout.alignment: Qt.AlignTop
 					spacing: 0
 					visible: mainItem.isExpanded
-					onVisibleChanged: model= mainItem.conferenceInfoModel.getParticipants()
+					onVisibleChanged: visible ? model= mainItem.conferenceInfoModel.getParticipants() : model = []
+					Connections{
+						target: mainItem.conferenceInfoModel
+						onParticipantsChanged: if(expandedParticipantsList.visible) expandedParticipantsList.model = mainItem.conferenceInfoModel.getParticipants()
+					}
 					
 					delegate: Row{
 						spacing: 5
diff --git a/linphone-app/ui/modules/Linphone/Chat/ChatConferenceInvitationMessage.qml b/linphone-app/ui/modules/Linphone/Chat/ChatConferenceInvitationMessage.qml
index b17b651d1..cced32c2a 100644
--- a/linphone-app/ui/modules/Linphone/Chat/ChatConferenceInvitationMessage.qml
+++ b/linphone-app/ui/modules/Linphone/Chat/ChatConferenceInvitationMessage.qml
@@ -204,7 +204,11 @@ Loader{
 					Layout.leftMargin: 10
 					spacing: 0
 					visible: mainItem.isExpanded
-					onVisibleChanged: model= mainItem.conferenceInfoModel.getParticipants()
+					onVisibleChanged: visible ? model= mainItem.conferenceInfoModel.getParticipants() : model = []
+					Connections{
+						target: mainItem.conferenceInfoModel
+						onParticipantsChanged: if(expandedParticipantsList.visible) expandedParticipantsList.model = mainItem.conferenceInfoModel.getParticipants()
+					}
 					
 					delegate: Row{
 						spacing: 5