diff --git a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/ExpressionInformationControlCreator.java b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/ExpressionInformationControlCreator.java
index ca0ee3decc8..6e1a60b2bfb 100644
--- a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/ExpressionInformationControlCreator.java
+++ b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/ExpressionInformationControlCreator.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2010 IBM Corporation and others.
+ * Copyright (c) 2008, 2013 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -359,15 +359,18 @@ public class ExpressionInformationControlCreator implements IInformationControlC
                     fViewer.getDisplay().timerExec(100, new Runnable() {
                         @Override
 						public void run() {
-                            TreeSelection selection = (TreeSelection) fViewer.getSelection();
-                            if (selection.isEmpty()) {
-                                selection = new TreeSelection(fViewer.getTopElementPath());
-                            }
-                            fViewer.setSelection(selection);
-                            if (fDetailPane != null) {
-                                fDetailPane.display(selection);
-                            }
-                        }});
+							if (!fViewer.getTree().isDisposed()) {
+								TreeSelection selection = (TreeSelection) fViewer.getSelection();
+								if (selection.isEmpty()) {
+									selection = new TreeSelection(fViewer.getTopElementPath());
+								}
+								fViewer.setSelection(selection);
+								if (fDetailPane != null) {
+									fDetailPane.display(selection);
+								}
+							}
+						}
+					});
 				}
 				@Override
 				public void viewerUpdatesBegin() {