diff --git a/oxdb/backend/fields.py b/oxdb/backend/fields.py
deleted file mode 100644
index e556ecca..00000000
--- a/oxdb/backend/fields.py
+++ /dev/null
@@ -1,47 +0,0 @@
-from django.db import models
-from django.utils import simplejson as json
-
-
-class DictField(models.TextField):
-    """DictField is a textfield that contains JSON-serialized dictionaries."""
-
-    # Used so to_python() is called
-    __metaclass__ = models.SubfieldBase
-
-    def to_python(self, value):
-        """Convert our string value to python after we load it from the DB"""
-        if isinstance(value, dict):
-            return value
-
-        value = json.loads(value)
-        assert isinstance(value, dict)
-        return value
-
-    def get_db_prep_save(self, value):
-        """Convert our JSON object to a string before we save"""
-        assert isinstance(value, dict)
-        value = json.dumps(value)
-        return super(DictField, self).get_db_prep_save(value)
-
-
-class TupleField(models.TextField):
-    """TupleField is a textfield that contains JSON-serialized tuples."""
-
-    # Used so to_python() is called
-    __metaclass__ = models.SubfieldBase
-
-    def to_python(self, value):
-        """Convert our string value to JSON after we load it from the DB"""
-        if isinstance(value, tuple):
-            return value
-
-        value = json.loads(value)
-        assert isinstance(value, list)
-        return tuple(value)
-
-    def get_db_prep_save(self, value):
-        """Convert our JSON object to a string before we save"""
-        assert isinstance(value, tuple)
-        value = json.dumps(value)
-        return super(TupleField, self).get_db_prep_save(value)
-
diff --git a/oxdb/backend/models.py b/oxdb/backend/models.py
index ee5cebb2..ffa17634 100644
--- a/oxdb/backend/models.py
+++ b/oxdb/backend/models.py
@@ -9,14 +9,15 @@ from django.db import models
 from django.db.models import Q
 from django.contrib.auth.models import User
 from django.core.files.base import ContentFile
+from django.utils import simplejson as json
+
 import oxlib
 from oxlib import stripTags
 from oxlib.normalize import canonicalTitle, canonicalName
-from django.utils import simplejson as json
+from oxdjango import fields
 
 import utils
 import managers
-import fields
 import load
 
 class MovieImdb(models.Model):