Fix missing override keyword

src/xswiftbus/dbusconnection.h

@@ -77,7 +77,7 @@ namespace XSwiftBus
         CDBusError lastError() const { return m_lastError; }
 
     protected:
-        virtual void dispatch();
+        virtual void dispatch() override;
 
     private:
         void setDispatchStatus(DBusConnection *connection, DBusDispatchStatus status);

src/xswiftbus/dbusserver.h

@@ -50,7 +50,7 @@ namespace XSwiftBus
         //! Is connected?
         bool isConnected() const;
 
-        void dispatch() {}
+        void dispatch() override {}
 
         //! Close connection
         void close();