#include "src/kernel/activity/ActivityImpl.hpp"
#include "src/kernel/actor/ActorImpl.hpp"
-#include "src/kernel/actor/SimcallObserver.hpp"
+#include "src/kernel/actor/CommObserver.hpp"
XBT_LOG_EXTERNAL_CATEGORY(s4u);
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_activity, s4u, "S4U activities");