added missing curly bracket

main.tf

@@ -20,7 +20,7 @@ module "cluster-network" {
     # Default name var is in the module main file
     admin_state_up = var.admin-state-up
     enable_dhcp = var.enable-dhcp
-    
+}
     
 output "internal_network_id" {
   value = "${module.internal-network.internal_network_id}"