diff --git a/src/Core/Scene/CLightNode.cpp b/src/Core/Scene/CLightNode.cpp
index ed350678..e42fcfcd 100644
--- a/src/Core/Scene/CLightNode.cpp
+++ b/src/Core/Scene/CLightNode.cpp
@@ -138,12 +138,7 @@ void CLightNode::PropertyModified(IProperty* pProperty)
         SetPosition( mpLight->Position() );
 }
 
-CLight* CLightNode::Light()
-{
-    return mpLight;
-}
-
-CVector2f CLightNode::BillboardScale()
+CVector2f CLightNode::BillboardScale() const
 {
     return AbsoluteScale().XZ() * 0.75f;
 }
diff --git a/src/Core/Scene/CLightNode.h b/src/Core/Scene/CLightNode.h
index 686dcec7..24b0468e 100644
--- a/src/Core/Scene/CLightNode.h
+++ b/src/Core/Scene/CLightNode.h
@@ -18,8 +18,9 @@ public:
     CStructRef GetProperties() const override;
     void PropertyModified(IProperty* pProperty) override;
     bool AllowsRotate() const override { return false; }
-    CLight* Light();
-    CVector2f BillboardScale();
+    CLight* Light() { return mpLight; }
+    const CLight* Light() const { return mpLight; }
+    CVector2f BillboardScale() const;
 
 protected:
     void CalculateTransform(CTransform4f& rOut) const override;