diff --git a/etc/group b/etc/group
index cebcb65..d80647e 100644
--- a/etc/group
+++ b/etc/group
@@ -52,6 +52,7 @@ http:80
 partimag:81
 pound:82
 users:100
+pdns:107
 ldap:389
 jboss:390
 secoff:400
diff --git a/etc/passwd b/etc/passwd
index fb0e9a1..c727645 100644
--- a/etc/passwd
+++ b/etc/passwd
@@ -45,6 +45,7 @@ mailman:79:79
 http:80:80
 partimag:81:81
 pound:82:82
+pdns:107:107
 ldap:389:389
 jboss:390:390
 secoff:400:400
diff --git a/etc/register b/etc/register
index 19dad20..b906466 100644
--- a/etc/register
+++ b/etc/register
@@ -136,6 +136,9 @@ Reserved User and Group IDs:
 - dovecot:
 97	dovecot		dovecot
 
+- pdns:
+107    pdns            pdns
+
 - ldap:
 389	ldap		ldap