diff --git a/plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/VMDelta.java b/plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/VMDelta.java
index 800d163a303..ac52e8d9834 100644
--- a/plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/VMDelta.java
+++ b/plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/VMDelta.java
@@ -111,10 +111,16 @@ public class VMDelta extends ModelDelta {
 		return fFlags;
 	}
 
-    public void addFlags(int flags) {
-        fFlags |= flags;
+    /**
+     * Sets this delta's flags.
+     * 
+     * @param flags
+     */
+    @Override
+    public void setFlags(int flags) {
+        fFlags = flags;
     }
-    
+
     public void setChildCount(int count) {
         fChildCount = count;
     }