diff --git a/appengine-java8/datastore/src/test/java/com/example/appengine/TransactionsTest.java b/appengine-java8/datastore/src/test/java/com/example/appengine/TransactionsTest.java
index 0e81e300dd1..aa732dca79c 100644
--- a/appengine-java8/datastore/src/test/java/com/example/appengine/TransactionsTest.java
+++ b/appengine-java8/datastore/src/test/java/com/example/appengine/TransactionsTest.java
@@ -298,7 +298,7 @@ public void transactionalTaskEnqueuing() throws Exception {
     Transaction txn = datastore.beginTransaction();
     // ...
 
-    queue.add(TaskOptions.Builder.withUrl("/path/to/handler"));
+    queue.add(txn, TaskOptions.Builder.withUrl("/path/to/handler"));
 
     // ...