diff --git a/cluster/juju/util.sh b/cluster/juju/util.sh
index f253abd0c8c..3e11583ba01 100755
--- a/cluster/juju/util.sh
+++ b/cluster/juju/util.sh
@@ -60,6 +60,8 @@ function kube-up() {
 }
 
 function kube-down() {
+    # Remove the binary files from the charm directory.
+    rm -rf cluster/juju/charms/trusty/kubernetes-master/files/output/
     local jujuenv
     jujuenv=$(cat ~/.juju/current-environment)
     juju destroy-environment $jujuenv