diff --git a/app/admin/forms.py b/app/admin/forms.py
index 886a2da..1d13e70 100644
--- a/app/admin/forms.py
+++ b/app/admin/forms.py
@@ -28,7 +28,7 @@ class Addr2PoolForm(FlaskForm):
     region_choices = [(1, 'Plovdiv, Bulgaria')]
     region = SelectField('Region', choices=region_choices, coerce=int)
     ip = StringField('IP Address:', [validators.DataRequired(), validators.Regexp(message='172.16.0.1', regex='^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$')])
-    rdns = StringField('Reverse DNS:', [validators.Regexp(message='must be fqdn', regex='^[a-zA-Z0-9][a-zA-Z0-9-_]{0,61}[a-zA-Z0-9]{0,1}\.([a-zA-Z]{1,6}|[a-zA-Z0-9-]{1,30}\.[a-zA-Z]{2,3})$')])
+    rdns = StringField('Reverse DNS:', [validators.Optional(), validators.Regexp(message='must be fqdn', regex='^[a-zA-Z0-9][a-zA-Z0-9-_]{0,61}[a-zA-Z0-9]{0,1}\.([a-zA-Z]{1,6}|[a-zA-Z0-9-]{1,30}\.[a-zA-Z]{2,3})$')])
     reserved = BooleanField('Reserved:')
     submit = SubmitField('Add IP')