diff --git a/sdk/jme3-core/src/com/jme3/gde/core/scene/SceneApplication.java b/sdk/jme3-core/src/com/jme3/gde/core/scene/SceneApplication.java
index 42cc586ad..da5500462 100644
--- a/sdk/jme3-core/src/com/jme3/gde/core/scene/SceneApplication.java
+++ b/sdk/jme3-core/src/com/jme3/gde/core/scene/SceneApplication.java
@@ -421,6 +421,7 @@ public class SceneApplication extends Application implements LookupProvider, Loo
             public void run() {
                 if (node == null) {
                     SceneViewerTopComponent.findInstance().setActivatedNodes(new org.openide.nodes.Node[]{});
+                    SceneViewerTopComponent.findInstance().close();
                 } else {
                     SceneViewerTopComponent.findInstance().setActivatedNodes(new org.openide.nodes.Node[]{node});
                     SceneViewerTopComponent.findInstance().open();