diff --git a/cluster/ubuntu/config-default.sh b/cluster/ubuntu/config-default.sh
index eb59dc242b2..ec63f7650fb 100755
--- a/cluster/ubuntu/config-default.sh
+++ b/cluster/ubuntu/config-default.sh
@@ -34,8 +34,6 @@ export SERVICE_CLUSTER_IP_RANGE=${SERVICE_CLUSTER_IP_RANGE:-192.168.3.0/24}  # f
 # define the IP range used for flannel overlay network, should not conflict with above SERVICE_CLUSTER_IP_RANGE
 export FLANNEL_NET=${FLANNEL_NET:-172.16.0.0/16}
 
-export FLANNEL_OPTS=${FLANNEL_OPTS:-"Network": 172.16.0.0/16}
-
 # Admission Controllers to invoke prior to persisting objects in cluster
 export ADMISSION_CONTROL=NamespaceLifecycle,NamespaceExists,LimitRanger,ServiceAccount,ResourceQuota,SecurityContextDeny
 
diff --git a/cluster/ubuntu/util.sh b/cluster/ubuntu/util.sh
index d04cd0c02e4..1145a02bb93 100755
--- a/cluster/ubuntu/util.sh
+++ b/cluster/ubuntu/util.sh
@@ -400,7 +400,7 @@ function provision-minion() {
                          sudo -p '[sudo] password to copy files and start minion: ' cp ~/kube/default/* /etc/default/ && sudo cp ~/kube/init_conf/* /etc/init/ && sudo cp ~/kube/init_scripts/* /etc/init.d/ \
                          && sudo mkdir -p /opt/bin/ && sudo cp ~/kube/minion/* /opt/bin; \
                          sudo service etcd start; \
-                         sudo -b ~/kube/reconfDocker.sh"
+                         sudo FLANNEL_NET=${FLANNEL_NET} -b ~/kube/reconfDocker.sh"
 }
 
 function provision-masterandminion() {
@@ -425,7 +425,7 @@ function provision-masterandminion() {
                             sudo ~/kube/make-ca-cert.sh ${MASTER_IP} IP:${MASTER_IP},IP:${SERVICE_CLUSTER_IP_RANGE%.*}.1,DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.cluster.local; \
                             sudo mkdir -p /opt/bin/ && sudo cp ~/kube/master/* /opt/bin/ && sudo cp ~/kube/minion/* /opt/bin/; \
                             sudo service etcd start; \
-                            sudo -b ~/kube/reconfDocker.sh"
+                            sudo FLANNEL_NET=${FLANNEL_NET} -b ~/kube/reconfDocker.sh"
 }
 
 # Delete a kubernetes cluster