diff --git a/apps/opencs/view/render/instancemode.cpp b/apps/opencs/view/render/instancemode.cpp
index bfc233d29..d31327137 100644
--- a/apps/opencs/view/render/instancemode.cpp
+++ b/apps/opencs/view/render/instancemode.cpp
@@ -71,6 +71,8 @@ void CSVRender::InstanceMode::activate (CSVWidget::SceneToolbar *toolbar)
 
 void CSVRender::InstanceMode::deactivate (CSVWidget::SceneToolbar *toolbar)
 {
+    getWorldspaceWidget().reset (Mask_Reference);
+
     if (mSelectionMode)
     {
         toolbar->removeTool (mSelectionMode);