--- a/build.xml
+++ b/build.xml
@@ -147,8 +147,6 @@
 		<delete includeemptydirs="true" dir="${basedir}/jist-bin" />
 		<delete includeemptydirs="true" dir="${basedir}/jist-bin-modules" />
 		<delete includeemptydirs="true" dir="${basedir}/jars" />
-		<delete includeemptydirs="true" dir="${basedir}/jist" />
-		<delete includeemptydirs="true" dir="${basedir}/jist-jhu-plugins" />
 		<delete includeemptydirs="true" dir="${basedir}/CRUISE" />
 		<delete includeemptydirs="true" dir="${basedir}/CRUISE-bin" />
 		<delete includeemptydirs="true" dir="${basedir}/mipav" />
