diff --git a/user/test/com/google/gwt/jsonp/client/JsonpRequestTest.java b/user/test/com/google/gwt/jsonp/client/JsonpRequestTest.java
index a9bf26c..c3aefba 100644
--- a/user/test/com/google/gwt/jsonp/client/JsonpRequestTest.java
+++ b/user/test/com/google/gwt/jsonp/client/JsonpRequestTest.java
@@ -184,7 +184,7 @@
   public void testCancel() {
     delayTestFinish(2000);
     // setup a server request that will delay for 500ms
-    JsonpRequest<String> req = jsonp.requestString(echoDelayed("A", 500),
+    JsonpRequest<String> req = jsonp.requestString(echoDelayed("'A'", 500),
         new AssertFailureCallback<String>("A"));
     // cancel it before it comes back
     req.cancel();