diff --git a/sylk/applications/webrtcgateway/models/validators.py b/sylk/applications/webrtcgateway/models/validators.py
index a830742..e3112a8 100644
--- a/sylk/applications/webrtcgateway/models/validators.py
+++ b/sylk/applications/webrtcgateway/models/validators.py
@@ -1,64 +1,60 @@
 
 from sipsimple.core import SIPURI, SIPCoreError
 
 from .jsonobjects import Validator
 
 
 class AORValidator(Validator):
     def validate(self, value):
         prefix, sep, suffix = value.partition(':')
         if sep and prefix in ('sip', 'sips'):
             aor = suffix
         else:
             aor = value
         try:
             SIPURI.parse('sip:' + aor)
         except SIPCoreError:
             raise ValueError('invalid SIP URI: {}'.format(value))
         return aor
 
 
 class URIValidator(Validator):
     def validate(self, value):
         prefix, sep, suffix = value.partition(':')
         if sep and prefix in ('sip', 'sips'):
             uri = 'sip:' + suffix
         else:
             uri = 'sip:' + value
         try:
             SIPURI.parse(uri)
         except SIPCoreError:
             raise ValueError('invalid SIP URI: {}'.format(value))
         return uri
 
 
 class DisplayNameValidator(Validator):
     def validate(self, value):
-        # strip quotes if present
-        if value[0] == value[-1] == '"':
-            return value[1:-1]
-        else:
-            return value
+        return value.strip('" ')  # strip quotes if present
 
 
 class UniqueItemsValidator(Validator):
     def validate(self, sequence):
         seen = set()
         unique = []
         for item in sequence:
             if item not in seen:
                 seen.add(item)
                 unique.append(item)
         return unique
 
 
 class LengthValidator(Validator):
     def __init__(self, minimum=0, maximum=float('inf')):
         self.minimum = minimum
         self.maximum = maximum
 
     def validate(self, value):
         if self.minimum <= len(value) <= self.maximum:
             return value
         else:
             raise ValueError("the value's length must be between {0.minimum} and {0.maximum} inclusive".format(self))