diff --git a/java/java.completion/src/org/netbeans/modules/java/completion/JavaCompletionTask.java b/java/java.completion/src/org/netbeans/modules/java/completion/JavaCompletionTask.java
index 6daf24be42cf..07c0c5324e6d 100644
--- a/java/java.completion/src/org/netbeans/modules/java/completion/JavaCompletionTask.java
+++ b/java/java.completion/src/org/netbeans/modules/java/completion/JavaCompletionTask.java
@@ -285,6 +285,7 @@ public int getAnchorOffset() {
 
     @Override
     protected void resolve(CompilationController controller) throws IOException {
+        controller.getChangedTree();
         Env env = getCompletionEnvironment(controller, true);
         if (env == null) {
             return;