// If SimGrid is already initialized, we need to attach an extension to each existing host
if (simgrid::s4u::Engine::is_initialized()) {
- simgrid::s4u::Engine* e = simgrid::s4u::Engine::get_instance();
+ const simgrid::s4u::Engine* e = simgrid::s4u::Engine::get_instance();
for (auto& host : e->get_all_hosts()) {
host->extension_set(new HostLoad(host));
}