diff --git a/build.xml b/build.xml
index 78f3745..957bf05 100644
--- a/build.xml
+++ b/build.xml
@@ -32,7 +32,8 @@
 		<delete file="${target}/plantuml.war" />
 	    <delete>
 	        <fileset dir="${target}" includes="**/*.class"/>
-	      </delete>
+	    </delete>
+        <delete dir="${target}/root" />
 		<delete dir="content/WEB-INF/classes" />
 		<mkdir dir="content/WEB-INF/classes" />
 	</target>