diff --git a/base/build/build.xml b/base/build/build.xml
index 4965e6c64ad389138e016ac85ed74ee1cdcc8576..89242f085d04281fa51b658f10f4aca4af882f9f 100644
--- a/base/build/build.xml
+++ b/base/build/build.xml
@@ -118,6 +118,7 @@
 		<zip destfile="${dist.file}-${version.number}.zip"
 		     basedir="${dist}"
 		     includes="${mainfolder}/**" />
+		<delete dir="${dist}/${mainfolder}" />
 	</target>
 
 	<!--