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 e8721c4e7..a10679ede 100644
--- a/src/chat/chat-room/server-group-chat-room-p.h
+++ b/src/chat/chat-room/server-group-chat-room-p.h
@@ -49,6 +49,7 @@ public:
 	void confirmCreation ();
 	void confirmJoining (SalCallOp *op);
 	void confirmRecreation (SalCallOp *op);
+	void declineSession (const std::shared_ptr<CallSession> &session, LinphoneReason reason);
 	void dispatchQueuedMessages ();
 
 	void subscribeReceived (LinphoneEvent *event);
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 46f613db1..7b58513c6 100644
--- a/src/chat/chat-room/server-group-chat-room-stub.cpp
+++ b/src/chat/chat-room/server-group-chat-room-stub.cpp
@@ -60,6 +60,8 @@ void ServerGroupChatRoomPrivate::confirmJoining (SalCallOp *) {}
 
 void ServerGroupChatRoomPrivate::confirmRecreation (SalCallOp *) {}
 
+void ServerGroupChatRoomPrivate::declineSession (const shared_ptr<CallSession> &session, LinphoneReason reason) {}
+
 void ServerGroupChatRoomPrivate::dispatchQueuedMessages () {}
 
 // -----------------------------------------------------------------------------