diff --git a/templates/postfix/main.cf.j2 b/templates/postfix/main.cf.j2
index 9749159..0c9da12 100644
--- a/templates/postfix/main.cf.j2
+++ b/templates/postfix/main.cf.j2
@@ -1,4 +1,5 @@
 ### {{ ansible_managed }}
+### {{ template_path }}
 
 {% if postfix_smtp_banner is defined %}
 smtpd_banner = {{ postfix_smtpd_banner }}