diff --git a/build.xml b/build.xml
index 88ad3d6da9ab6063f4b6d169991e237efd1a4afa..1f602ae14fe01e3944705a7def7d5e6cb0b41b2e 100644
--- a/build.xml
+++ b/build.xml
@@ -193,6 +193,7 @@
     <echo message="Cleaning tests..."/>
     <delete>
       <fileset dir="test/classes" includes="**/*.class"/>
+      <fileset dir="test/output" includes="**/*.*"/>
       <fileset dir="test/html" includes="**/*.html,**/*.xml,**/*.css"/>
     </delete>
     <delete dir="test/html/Ant suite"/>