diff --git a/manifests/init.pp b/manifests/init.pp
index 8d2ca47d..ec6207bf 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -114,7 +114,7 @@
     owner   => 'root',
     group   => 'root',
     mode    => '0644',
-    content => $master_os_template,
+    content => template($master_os_template),
     seltype => $postfix_seltype,
     notify  => Service['postfix'],
     require => Package['postfix'],