diff --git a/Engine.cc b/Engine.cc
index 545fd3f..e5dcf86 100644
--- a/Engine.cc
+++ b/Engine.cc
@@ -1357,6 +1357,8 @@ void Engine::Object::createManagedObject()
                 m_ode_object->addBox(m_args);
             float aabb[6] = {-(*m_args)[0], -(*m_args)[1], -(*m_args)[2],
                              (*m_args)[0], (*m_args)[1], (*m_args)[2]};
+            for (int i = 0; i < 6; i++)
+                aabb[i] /= 2.0f;
             memcpy(m_aabb, aabb, sizeof(m_aabb));
             break;
         }