diff --git a/build/build.xml b/build/build.xml
index fbacebfac..dbb44299f 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -67,6 +67,7 @@
 		<copy todir="${dist.dir}/ui/minified">
 			<fileset dir="${dist.dir}/ui-headered/" includes="*.js" />
 		</copy>
+		<delete dir="${dist.dir}/headers/" />
 		<delete dir="${dist.dir}/ui-headered/" />
 	</target>
 
@@ -156,6 +157,10 @@
 			<fileset dir="${ui.dir}/demos/" />
 		</copy>
 
+		<copy overwrite="true" todir="${dist.dir}/external/" >
+			<fileset dir="${ui.dir}/external/" />
+		</copy>
+
 		<copy overwrite="true" todir="${dist.dir}/tests/" >
 			<fileset dir="${ui.dir}/tests/" />
 		</copy>