diff --git a/oidc_provider/lib/claims.py b/oidc_provider/lib/claims.py
index d4398c0..6c80bc8 100644
--- a/oidc_provider/lib/claims.py
+++ b/oidc_provider/lib/claims.py
@@ -1,3 +1,5 @@
+import copy
+
 from django.utils.translation import ugettext as _
 
 from oidc_provider import settings
@@ -16,7 +18,8 @@ class ScopeClaims(object):
 
     def __init__(self, token):
         self.user = token.user
-        self.userinfo = settings.get('OIDC_USERINFO', import_str=True)(STANDARD_CLAIMS, self.user)
+        claims = copy.deepcopy(STANDARD_CLAIMS)
+        self.userinfo = settings.get('OIDC_USERINFO', import_str=True)(claims, self.user)
         self.scopes = token.scope
         self.client = token.client
 
diff --git a/oidc_provider/tests/test_claims.py b/oidc_provider/tests/test_claims.py
index ae105a1..1748f19 100644
--- a/oidc_provider/tests/test_claims.py
+++ b/oidc_provider/tests/test_claims.py
@@ -1,6 +1,6 @@
 from django.test import TestCase
 
-from oidc_provider.lib.claims import ScopeClaims
+from oidc_provider.lib.claims import ScopeClaims, STANDARD_CLAIMS
 from oidc_provider.tests.app.utils import create_fake_user, create_fake_client, create_fake_token
 
 
@@ -13,6 +13,13 @@ class ClaimsTestCase(TestCase):
         self.token = create_fake_token(self.user, self.scopes, self.client)
         self.scopeClaims = ScopeClaims(self.token)
 
+    def test_empty_standard_claims(self):
+        for v in [v for k, v in STANDARD_CLAIMS.items() if k != 'address']:
+            self.assertEqual(v, '')
+
+        for v in STANDARD_CLAIMS['address'].values():
+            self.assertEqual(v, '')
+
     def test_clean_dic(self):
         """ assert that _clean_dic function returns a clean dictionnary
             (no empty claims) """