diff --git a/vmseries-simple-template/azureDeploy.json b/vmseries-simple-template/azureDeploy.json
index 16616e2..946133a 100755
--- a/vmseries-simple-template/azureDeploy.json
+++ b/vmseries-simple-template/azureDeploy.json
@@ -241,7 +241,7 @@
     }, {
         "apiVersion": "[variables('apiVersion')]",
         "type": "Microsoft.Network/networkSecurityGroups",
-        "name": "DefaultNSG",
+        "name": "[concat(parameters('vmName'), '-DefaultNSG')]",
         "location": "[parameters('location')]",
         "properties": {
             "securityRules": [{