diff --git a/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/XMLMemento.java b/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/XMLMemento.java
index 2b44e95a927..e9a2b901e63 100644
--- a/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/XMLMemento.java
+++ b/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/XMLMemento.java
@@ -46,9 +46,9 @@
  * @see IMemento
  */
 public final class XMLMemento implements IMemento {
-	private Document factory;
+	private final Document factory;
 
-	private Element element;
+	private final Element element;
 
 	/**
 	 * Creates a <code>Document</code> from the <code>Reader</code> and returns a