diff --git a/README.md b/README.md
index 86e66e9..3e81f9b 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,7 @@ See `attributes/default.rb` for default values.
   `smtpd_milters` option in `/etc/postfix/main.cf`.
 * `node['postfix']['non_smtpd_milters']` - corresponds to the
   `non_smtpd_milters` option in `/etc/postfix/main.cf`.
+* `node['postfix']['inet_interfaces']` - interfaces to listen to, all or loopback-only
 
 Recipes
 =======
diff --git a/templates/default/main.cf.erb b/templates/default/main.cf.erb
index d1f89f5..c939f9d 100644
--- a/templates/default/main.cf.erb
+++ b/templates/default/main.cf.erb
@@ -31,11 +31,11 @@ mydestination = <%= node['postfix']['myhostname'] %>, <%= node['hostname'] %>, l
 <% if node['postfix']['mail_type'] == "master" -%>
 relayhost =
 mynetworks = <%= node['postfix']['mail_relay_networks'] %>
-inet_interfaces = <%= node[:postfix][:inet_interfaces] || 'all' %>
+inet_interfaces = <%= node['postfix']['inet_interfaces'] || 'all' %>
 <% else -%>
 relayhost = <%= node['postfix']['relayhost'] %>
 mynetworks = <%= node['postfix']['mail_relay_networks'] %>
-inet_interfaces = <%= node[:postfix][:inet_interfaces] || 'loopback-only' %>
+inet_interfaces = <%= node['postfix']['inet_interfaces'] || 'loopback-only' %>
 <% end -%>
 <% if node['postfix']['use_procmail'] -%>
 mailbox_command = /usr/bin/procmail -a "$EXTENSION"