diff --git a/astrid/plugin-src/com/todoroo/astrid/subtasks/AstridOrderedListUpdater.java b/astrid/plugin-src/com/todoroo/astrid/subtasks/AstridOrderedListUpdater.java
index 655e911dd..d407b60c0 100644
--- a/astrid/plugin-src/com/todoroo/astrid/subtasks/AstridOrderedListUpdater.java
+++ b/astrid/plugin-src/com/todoroo/astrid/subtasks/AstridOrderedListUpdater.java
@@ -66,6 +66,7 @@ public abstract class AstridOrderedListUpdater<LIST> {
     }
 
     public void initializeFromSerializedTree(LIST list, Filter filter, String serializedTree) {
+        idToNode.clear();
         treeRoot = buildTreeModel(serializedTree, new JSONTreeModelBuilder() {
             @Override
             public void afterAddNode(Node node) {