diff --git a/build.xml b/build.xml
index c76e98e3e..281dcdaf0 100644
--- a/build.xml
+++ b/build.xml
@@ -114,6 +114,7 @@
   <target name="clean">
     <delete dir="${deploy.dir}/classes"/>
     <delete dir="${deploy.dir}/docs"/>
+    <delete failonerror="false"><fileset dir="${deploy.dir}" includes="*.jar"/></delete>
     <ant dir="tests" target="clean"/>
   </target>