1 files changed, 4 insertions, 0 deletions
diff --git a/chart2/source/controller/dialogs/tp_3D_SceneIllumination.cxx b/chart2/source/controller/dialogs/tp_3D_SceneIllumination.cxx
index 8bb45729b6f4..39000a96949a 100644
--- a/chart2/source/controller/dialogs/tp_3D_SceneIllumination.cxx
+++ b/chart2/source/controller/dialogs/tp_3D_SceneIllumination.cxx
@@ -57,6 +57,8 @@ void LightButton::switchLightOn(bool bOn)
         m_xButton->set_from_icon_name(RID_SVXBMP_LAMP_OFF);
 }
 
+namespace {
+
 struct LightSource
 {
     Color nDiffuseColor;
@@ -70,6 +72,8 @@ struct LightSource
     {}
 };
 
+}
+
 struct LightSourceInfo
 {
     LightButton* pButton;