diff --git a/apps/opencs/view/render/mousestate.cpp b/apps/opencs/view/render/mousestate.cpp
index 5c5279b7a6..90ca522c1c 100644
--- a/apps/opencs/view/render/mousestate.cpp
+++ b/apps/opencs/view/render/mousestate.cpp
@@ -335,6 +335,7 @@ namespace CSVRender
     {
         CSMSettings::UserSettings &userSettings = CSMSettings::UserSettings::instance();
         QString coord =  userSettings.setting("debug/mouse-reference", QString("screen"));
+        Ogre::Vector3 derived = getCamera()->getDerivedDirection();
 
         QString wheelDir =  userSettings.setting("debug/mouse-wheel", QString("Closer/Further"));
         if(wheelDir == "Left/Right")
@@ -342,7 +343,7 @@ namespace CSVRender
             if(coord == "world")
                 return std::make_pair(Ogre::Vector3::UNIT_Y, Ogre::Vector3::UNIT_X);
             else
-                return std::make_pair(getCamera()->getDerivedRight(), getCamera()->getDerivedDirection());
+                return std::make_pair(getCamera()->getDerivedRight(), Ogre::Vector3(-derived.x, -derived.y, -derived.z));
         }
         else if(wheelDir == "Up/Down")
         {
@@ -356,7 +357,7 @@ namespace CSVRender
             if(coord == "world")
                 return std::make_pair(Ogre::Vector3::UNIT_X, Ogre::Vector3::UNIT_Y);
             else
-                return std::make_pair(getCamera()->getDerivedDirection(), getCamera()->getDerivedRight());
+                return std::make_pair(Ogre::Vector3(-derived.x, -derived.y, -derived.z), getCamera()->getDerivedRight());
         }
     }
 
diff --git a/apps/opencs/view/render/worldspacewidget.cpp b/apps/opencs/view/render/worldspacewidget.cpp
index 0503d4d63e..ee119c939d 100644
--- a/apps/opencs/view/render/worldspacewidget.cpp
+++ b/apps/opencs/view/render/worldspacewidget.cpp
@@ -19,7 +19,6 @@
 #include "../world/physicsmanager.hpp"
 #include "../world/physicssystem.hpp"
 
-#include "mousestate.hpp"
 #include "elements.hpp"
 
 CSVRender::WorldspaceWidget::WorldspaceWidget (CSMDoc::Document& document, QWidget* parent)
diff --git a/apps/opencs/view/render/worldspacewidget.hpp b/apps/opencs/view/render/worldspacewidget.hpp
index 2dfe2b8710..40799d86a9 100644
--- a/apps/opencs/view/render/worldspacewidget.hpp
+++ b/apps/opencs/view/render/worldspacewidget.hpp
@@ -2,6 +2,7 @@
 #define OPENCS_VIEW_WORLDSPACEWIDGET_H
 
 #include "scenewidget.hpp"
+#include "mousestate.hpp"
 
 #include "navigation1st.hpp"
 #include "navigationfree.hpp"