diff --git a/org.eclipse.handly.tests/src/org/eclipse/handly/model/impl/support/WorkingCopyNotificationTest.java b/org.eclipse.handly.tests/src/org/eclipse/handly/model/impl/support/WorkingCopyNotificationTest.java
index 6102204..2726404 100644
--- a/org.eclipse.handly.tests/src/org/eclipse/handly/model/impl/support/WorkingCopyNotificationTest.java
+++ b/org.eclipse.handly.tests/src/org/eclipse/handly/model/impl/support/WorkingCopyNotificationTest.java
@@ -172,6 +172,6 @@
     {
         IElementChangeEvent event = events.get(index);
         assertEquals(type, event.getType());
-        assertEquals(expectedDelta, event.getDeltas()[0].toString());
+        assertEquals(expectedDelta, event.getDelta().toString());
     }
 }