diff --git a/engine.cpp b/engine.cpp
index 5f9a6b8..1442110 100644
--- a/engine.cpp
+++ b/engine.cpp
@@ -29,6 +29,7 @@ Engine::~Engine()
     delete m_renderer;
     if(m_window != NULL)
     {
+        m_window->close();
         delete m_window;
         delete m_input;
     }
@@ -73,6 +74,8 @@ void Engine::update()
     if(m_world != NULL)
         m_world->stepSimulation(1000.f*(float)getDeltaTime());
     // update Display
+    if(m_input->isResized())
+        m_renderer->resizeGL(m_window->getSize().x, m_window->getSize().y);
     m_renderer->renderGL();
     m_window->display();
 }