diff --git a/rest_framework/authentication.py b/rest_framework/authentication.py
index fd5973977..f8954428e 100644
--- a/rest_framework/authentication.py
+++ b/rest_framework/authentication.py
@@ -126,7 +126,7 @@ class TokenAuthentication(BaseAuthentication):
             except self.model.DoesNotExist:
                 return None
 
-            if token.user.is_active and not getattr(token, 'revoked', False):
+            if token.user.is_active:
                 return (token.user, token)
 
 # TODO: OAuthAuthentication
diff --git a/rest_framework/authtoken/migrations/0001_initial.py b/rest_framework/authtoken/migrations/0001_initial.py
index a91006b00..99d9eab9f 100644
--- a/rest_framework/authtoken/migrations/0001_initial.py
+++ b/rest_framework/authtoken/migrations/0001_initial.py
@@ -11,8 +11,7 @@ class Migration(SchemaMigration):
         # Adding model 'Token'
         db.create_table('authtoken_token', (
             ('key', self.gf('django.db.models.fields.CharField')(max_length=40, primary_key=True)),
-            ('user', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['auth.User'])),
-            ('revoked', self.gf('django.db.models.fields.BooleanField')(default=False)),
+            ('user', self.gf('django.db.models.fields.related.OneToOneField')(related_name='api_key', unique=True, to=orm['auth.User'])),
             ('created', self.gf('django.db.models.fields.DateTimeField')(auto_now_add=True, blank=True)),
         ))
         db.send_create_signal('authtoken', ['Token'])
@@ -57,8 +56,7 @@ class Migration(SchemaMigration):
             'Meta': {'object_name': 'Token'},
             'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
             'key': ('django.db.models.fields.CharField', [], {'max_length': '40', 'primary_key': 'True'}),
-            'revoked': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
-            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+            'user': ('django.db.models.fields.related.OneToOneField', [], {'related_name': "'api_key'", 'unique': 'True', 'to': "orm['auth.User']"})
         },
         'contenttypes.contenttype': {
             'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
diff --git a/rest_framework/authtoken/models.py b/rest_framework/authtoken/models.py
index fd47e6c72..f7e78ef3d 100644
--- a/rest_framework/authtoken/models.py
+++ b/rest_framework/authtoken/models.py
@@ -9,8 +9,7 @@ class Token(models.Model):
     The default authorization token model.
     """
     key = models.CharField(max_length=40, primary_key=True)
-    user = models.ForeignKey('auth.User')
-    revoked = models.BooleanField(default=False)
+    user = models.OneToOneField('auth.User', related_name='api_key')
     created = models.DateTimeField(auto_now_add=True)
 
     def save(self, *args, **kwargs):
@@ -21,3 +20,6 @@ class Token(models.Model):
     def generate_key(self):
         unique = str(uuid.uuid4())
         return hmac.new(unique, digestmod=sha1).hexdigest()
+
+    def __unicode__(self):
+        return self.key
diff --git a/rest_framework/tests/authentication.py b/rest_framework/tests/authentication.py
index 0a3b2e020..8ab4c4e40 100644
--- a/rest_framework/tests/authentication.py
+++ b/rest_framework/tests/authentication.py
@@ -149,5 +149,6 @@ class TokenAuthTests(TestCase):
 
     def test_token_has_auto_assigned_key_if_none_provided(self):
         """Ensure creating a token with no key will auto-assign a key"""
+        self.token.delete()
         token = Token.objects.create(user=self.user)
         self.assertTrue(bool(token.key))