diff --git a/cluster/ubuntu/reconfDocker.sh b/cluster/ubuntu/reconfDocker.sh
index a05e3d2d130..7cb11e93367 100755
--- a/cluster/ubuntu/reconfDocker.sh
+++ b/cluster/ubuntu/reconfDocker.sh
@@ -59,7 +59,7 @@ function restart_docker {
 
   source /run/flannel/subnet.env
   source /etc/default/docker
-  echo DOCKER_OPTS=\"${DOCKER_OPTS} -H tcp://127.0.0.1:4243 -H unix:///var/run/docker.sock \
+  echo DOCKER_OPTS=\" -H tcp://127.0.0.1:4243 -H unix:///var/run/docker.sock \
        --bip=${FLANNEL_SUBNET} --mtu=${FLANNEL_MTU}\" > /etc/default/docker
   sudo service docker restart
 }