diff --git a/ogre/include/gz/rendering/ogre/OgreVisual.hh b/ogre/include/gz/rendering/ogre/OgreVisual.hh
index d9a8491b1..532caae9e 100644
--- a/ogre/include/gz/rendering/ogre/OgreVisual.hh
+++ b/ogre/include/gz/rendering/ogre/OgreVisual.hh
@@ -17,6 +17,8 @@
 #ifndef GZ_RENDERING_OGRE_OGREVISUAL_HH_
 #define GZ_RENDERING_OGRE_OGREVISUAL_HH_
 
+#include <memory>
+
 #include "gz/rendering/base/BaseVisual.hh"
 #include "gz/rendering/ogre/OgreNode.hh"
 #include "gz/rendering/ogre/OgreRenderTypes.hh"
diff --git a/ogre/src/OgreDepthCamera.cc b/ogre/src/OgreDepthCamera.cc
index cd8e7cba3..860d13d4f 100644
--- a/ogre/src/OgreDepthCamera.cc
+++ b/ogre/src/OgreDepthCamera.cc
@@ -130,6 +130,9 @@ void OgreDepthCamera::Destroy()
       this->ogreCamera = nullptr;
     }
   }
+
+  // call base node destroy to remove parent
+  OgreNode::Destroy();
 }
 
 //////////////////////////////////////////////////
diff --git a/ogre2/include/gz/rendering/ogre2/Ogre2Camera.hh b/ogre2/include/gz/rendering/ogre2/Ogre2Camera.hh
index 3c4922b26..941dc0139 100644
--- a/ogre2/include/gz/rendering/ogre2/Ogre2Camera.hh
+++ b/ogre2/include/gz/rendering/ogre2/Ogre2Camera.hh
@@ -17,6 +17,8 @@
 #ifndef GZ_RENDERING_OGRE2_OGRE2CAMERA_HH_
 #define GZ_RENDERING_OGRE2_OGRE2CAMERA_HH_
 
+#include <memory>
+
 #include "gz/rendering/base/BaseCamera.hh"
 #include "gz/rendering/ogre2/Ogre2RenderTypes.hh"
 #include "gz/rendering/ogre2/Ogre2Includes.hh"
diff --git a/src/Scene_TEST.cc b/src/Scene_TEST.cc
index 338f0a0b8..3ec781015 100644
--- a/src/Scene_TEST.cc
+++ b/src/Scene_TEST.cc
@@ -532,9 +532,9 @@ void SceneTest::DestroyNodes(const std::string &_renderEngine)
   EXPECT_EQ(0u, scene->SensorCount());
   EXPECT_EQ(0u, scene->LightCount());
 
-  EXPECT_DOUBLE_EQ(0.0, scene->SimTime().Double());
-  scene->SetSimTime(common::Time(3.55));
-  EXPECT_DOUBLE_EQ(3.55, scene->SimTime().Double());
+  EXPECT_EQ(std::chrono::milliseconds(0), scene->Time());
+  scene->SetTime(std::chrono::milliseconds(3550));
+  EXPECT_EQ(std::chrono::milliseconds(3550), scene->Time());
 
   // Clean up
   engine->DestroyScene(scene);