diff --git a/tests/build.xml b/tests/build.xml
index 69e4e749a..e8bbb714c 100644
--- a/tests/build.xml
+++ b/tests/build.xml
@@ -48,6 +48,10 @@
     <target name="-pre-build">
       <!-- copy library project jars -->
       <unzip src="../api/bin/classes.jar" dest="${tested.project.absolute.dir}/bin/classes" />
+      <!-- copy antbuild to bin -->
+      <copy todir="${tested.project.absolute.dir}/bin">
+        <fileset dir="${tested.project.absolute.dir}/antbuild" />
+      </copy>
     </target>
 
     <!-- override coverage target with custom reporting and rules -->