diff --git a/templates/smb.conf.j2 b/templates/smb.conf.j2
index f4491f8..a0109f9 100755
--- a/templates/smb.conf.j2
+++ b/templates/smb.conf.j2
@@ -8,7 +8,10 @@
   netbios name = {% if samba_netbios_name is defined %}{{ samba_netbios_name }}{% else %}{{ ansible_hostname }}{% endif %}
 
   workgroup = {{ samba_workgroup }}
-  server string = {{ samba_server_string }}
+{% if samba_realm is defined %}
+  realm = {{ samba_realm }}
+{% endif %}
+server string = {{ samba_server_string }}
 
   # Logging
 {% if samba_log is defined %}