diff --git a/examples/7nodes/istanbul-start.sh b/examples/7nodes/istanbul-start.sh
index 077a05f5..4ec28365 100755
--- a/examples/7nodes/istanbul-start.sh
+++ b/examples/7nodes/istanbul-start.sh
@@ -105,20 +105,22 @@ fi
 echo "[*] Starting ${numNodes} Ethereum nodes with ChainID and NetworkId of $NETWORK_ID"
 QUORUM_GETH_ARGS=${QUORUM_GETH_ARGS:-}
 set -v
-ARGS="--nodiscover --istanbul.blockperiod 5 --networkid $NETWORK_ID --syncmode full --mine --minerthreads 1 --rpc --rpccorsdomain=* --rpcvhosts=* --rpcaddr 0.0.0.0 --rpcapi admin,eth,debug,miner,net,shh,txpool,personal,web3,quorum,istanbul,quorumPermission --unlock 0 --password passwords.txt $QUORUM_GETH_ARGS"
+ARGS="--nodiscover --istanbul.blockperiod 5 --networkid $NETWORK_ID --syncmode full --mine --minerthreads 1 --rpc --rpccorsdomain=* --rpcvhosts=* --rpcaddr 0.0.0.0 --rpcapi admin,eth,debug,miner,net,shh,txpool,personal,web3,quorum,istanbul,quorumPermission --ws --wsaddr=localhost --wsorigins=* --wsapi admin,eth,debug,miner,net,shh,txpool,personal,web3,quorum,istanbul,quorumPermission --unlock 0 --password passwords.txt $QUORUM_GETH_ARGS"
 
 basePort=21000
 baseRpcPort=22000
+baseWsPort=23000
 for i in `seq 1 ${numNodes}`
 do
     port=$(($basePort + ${i} - 1))
     rpcPort=$(($baseRpcPort + ${i} - 1))
+    wsPort=$(($baseWsPort + ${i} - 1))
     permissioned=
     if ! [[ -z "${STARTPERMISSION+x}" ]] ; then
         permissioned="--permissioned"
     fi
 
-    PRIVATE_CONFIG=qdata/c${i}/tm.ipc nohup geth --datadir qdata/dd${i} ${ARGS} ${permissioned} --rpcport ${rpcPort} --port ${port} 2>>qdata/logs/${i}.log &
+    PRIVATE_CONFIG=qdata/c${i}/tm.ipc nohup geth --datadir qdata/dd${i} ${ARGS} ${permissioned} --rpcport ${rpcPort} --wsport ${wsPort} --port ${port} 2>>qdata/logs/${i}.log &
 done
 
 set +v