diff --git a/greenmine/base/models.py b/greenmine/base/models.py
index 6df4c971..cfc7e288 100644
--- a/greenmine/base/models.py
+++ b/greenmine/base/models.py
@@ -42,7 +42,7 @@ class User(AbstractUser):
                 verbose_name=_('default language'))
     default_timezone = models.CharField(max_length=20, null=False, blank=True, default='',
                 verbose_name=_('default timezone'))
-    token = models.CharField(max_length=200, unique=True, null=False, blank=True, default='',
+    token = models.CharField(max_length=200, null=False, blank=True, default='',
                 verbose_name=_('token'))
     colorize_tags = models.BooleanField(null=False, blank=True, default=False,
                 verbose_name=_('colorize tags'))