diff --git a/com.ibm.streamsx.hdfs/build.xml b/com.ibm.streamsx.hdfs/build.xml
index 05eea71..e07993a 100644
--- a/com.ibm.streamsx.hdfs/build.xml
+++ b/com.ibm.streamsx.hdfs/build.xml
@@ -42,6 +42,7 @@
 		<delete dir="${test.run.dir}"/>
 		<delete dir="${test.build.dir}"/>
 		<delete dir="${gensrc.dir}"/>
+		<delete dir="${ext.downloads.dir}"/>
 	</target>