diff --git a/src/chat/chat-room/server-group-chat-room-p.h b/src/chat/chat-room/server-group-chat-room-p.h
index a10679ede..1f124cab3 100644
--- a/src/chat/chat-room/server-group-chat-room-p.h
+++ b/src/chat/chat-room/server-group-chat-room-p.h
@@ -36,6 +36,8 @@ class ParticipantDevice;
 
 class ServerGroupChatRoomPrivate : public ChatRoomPrivate {
 public:
+	void setState (ChatRoom::State state) override;
+
 	std::shared_ptr<Participant> addParticipant (const IdentityAddress &participantAddress);
 	void removeParticipant (const std::shared_ptr<const Participant> &participant);
 
@@ -98,6 +100,7 @@ private:
 		CallSession::State newState,
 		const std::string &message
 	) override;
+	void onCallSessionSetReleased (const std::shared_ptr<CallSession> &session) override;
 
 	std::list<std::shared_ptr<Participant>> filteredParticipants;
 	ChatRoomListener *chatRoomListener = this;
diff --git a/src/chat/chat-room/server-group-chat-room-stub.cpp b/src/chat/chat-room/server-group-chat-room-stub.cpp
index 7b58513c6..ad0ce75f6 100644
--- a/src/chat/chat-room/server-group-chat-room-stub.cpp
+++ b/src/chat/chat-room/server-group-chat-room-stub.cpp
@@ -28,6 +28,10 @@ LINPHONE_BEGIN_NAMESPACE
 
 // -----------------------------------------------------------------------------
 
+void ServerGroupChatRoomPrivate::setState (ChatRoom::State state) {
+	ChatRoomPrivate::setState(state);
+}
+
 shared_ptr<Participant> ServerGroupChatRoomPrivate::addParticipant (const IdentityAddress &) {
 	return nullptr;
 }
@@ -124,6 +128,8 @@ void ServerGroupChatRoomPrivate::onCallSessionStateChanged (
 	const string &
 ) {}
 
+void ServerGroupChatRoomPrivate::onCallSessionSetReleased (const shared_ptr<CallSession> &session) {}
+
 // =============================================================================
 
 ServerGroupChatRoom::ServerGroupChatRoom (const shared_ptr<Core> &core, SalCallOp *op)