diff --git a/jobs/nats-tls/templates/nats-tls.conf.erb b/jobs/nats-tls/templates/nats-tls.conf.erb
index bbbe44f4..100637e3 100644
--- a/jobs/nats-tls/templates/nats-tls.conf.erb
+++ b/jobs/nats-tls/templates/nats-tls.conf.erb
@@ -103,6 +103,7 @@ cluster {
   no_advertise: <%= p("nats.no_advertise") %>
   host: "<%= p("nats.cluster_host", spec.address) %>"
   port: <%= p("nats.cluster_port") %>
+  pool_size: -1
 
   <%- if nats_auth_required and nats_user and nats_password -%>
   authorization {
diff --git a/spec/nats-tls/nats_tls_config_spec.rb b/spec/nats-tls/nats_tls_config_spec.rb
index 8df9f608..fbb42177 100644
--- a/spec/nats-tls/nats_tls_config_spec.rb
+++ b/spec/nats-tls/nats_tls_config_spec.rb
@@ -121,6 +121,7 @@ module Bosh::Template::Test
   no_advertise: false
   host: "10.0.0.1"
   port: 4223
+  pool_size: -1
 
   authorization \{
     user: "my-user"
@@ -199,6 +200,7 @@ module Bosh::Template::Test
   no_advertise: false
   host: "10.0.0.1"
   port: 4223
+  pool_size: -1
 
   authorization \{
     user: "my-user"
@@ -280,6 +282,7 @@ module Bosh::Template::Test
   no_advertise: false
   host: "10.0.0.1"
   port: 4223
+  pool_size: -1
 
   authorization \{
     user: "my-user"