diff --git a/itemis.create.examples.trafficlight.cpp.qt/implementation/main.cpp b/itemis.create.examples.trafficlight.cpp.qt/implementation/main.cpp
index d1937a0e..7994a12a 100644
--- a/itemis.create.examples.trafficlight.cpp.qt/implementation/main.cpp
+++ b/itemis.create.examples.trafficlight.cpp.qt/implementation/main.cpp
@@ -19,22 +19,23 @@ int main(int argc, char *argv[])
         return -1;
 
 
-    TrafficLightStateMachine *machine = new TrafficLightStateMachine(nullptr);
-    sc::qt::SCTimerService *timerService = new sc::qt::SCTimerService(machine);
+    std::shared_ptr<TrafficLightStateMachine> machine = std::make_shared<TrafficLightStateMachine>(nullptr);
+    std::shared_ptr<sc::qt::SCTimerService> timerService = std::make_shared<sc::qt::SCTimerService>(nullptr);
     machine->setTimerService(timerService);
 
+
     QObject *root = engine.rootObjects().at(0);
     QObject *control = root->findChild<QObject*>(QString("control"));
-    QObject::connect(control, SIGNAL(pause()), machine, SLOT(standby()));
-    QObject::connect(control, SIGNAL(play()), machine, SLOT(operate()));
+    QObject::connect(control, SIGNAL(pause()), machine.get(), SLOT(standby()));
+    QObject::connect(control, SIGNAL(play()), machine.get(), SLOT(operate()));
 
     QObject *trafficLight = root->findChild<QObject*>(QString("trafficLight"));
-    QObject::connect(machine, SIGNAL(redOn()), trafficLight, SLOT(redOn()));
-    QObject::connect(machine, SIGNAL(redOff()), trafficLight, SLOT(redOff()));
-    QObject::connect(machine, SIGNAL(yellowOn()), trafficLight, SLOT(yellowOn()));
-    QObject::connect(machine, SIGNAL(yellowOff()), trafficLight, SLOT(yellowOff()));
-    QObject::connect(machine, SIGNAL(greenOn()), trafficLight, SLOT(greenOn()));
-    QObject::connect(machine, SIGNAL(greenOff()), trafficLight, SLOT(greenOff()));
+    QObject::connect(machine.get(), SIGNAL(redOn()), trafficLight, SLOT(redOn()));
+    QObject::connect(machine.get(), SIGNAL(redOff()), trafficLight, SLOT(redOff()));
+    QObject::connect(machine.get(), SIGNAL(yellowOn()), trafficLight, SLOT(yellowOn()));
+    QObject::connect(machine.get(), SIGNAL(yellowOff()), trafficLight, SLOT(yellowOff()));
+    QObject::connect(machine.get(), SIGNAL(greenOn()), trafficLight, SLOT(greenOn()));
+    QObject::connect(machine.get(), SIGNAL(greenOff()), trafficLight, SLOT(greenOff()));
 
     machine->enter();