diff --git a/elasticutils/contrib/django/__init__.py b/elasticutils/contrib/django/__init__.py
index 1b8892c..f4c031f 100644
--- a/elasticutils/contrib/django/__init__.py
+++ b/elasticutils/contrib/django/__init__.py
@@ -307,4 +307,4 @@ def get_indexable(cls):
 
         """
         model = cls.get_model()
-        return model.objects.order_by('id').values_list('id', flat=True)
+        return model.objects.order_by('pk').values_list('pk', flat=True)
diff --git a/elasticutils/contrib/django/tasks.py b/elasticutils/contrib/django/tasks.py
index a61d3df..dd64951 100644
--- a/elasticutils/contrib/django/tasks.py
+++ b/elasticutils/contrib/django/tasks.py
@@ -44,7 +44,7 @@ def update_in_index(sender, instance, **kw):
         return
 
     log.debug('Indexing objects {0}-{1}. [{2}]'.format(
-            ids[0], ids[-1], len(ids)))
+              ids[0], ids[-1], len(ids)))
 
     # Get the model this mapping type is based on.
     model = mapping_type.get_model()
@@ -54,15 +54,15 @@ def update_in_index(sender, instance, **kw):
     for id_list in chunked(ids, chunk_size):
         documents = []
 
-        for obj in model.objects.filter(id__in=id_list):
+        for obj in model.objects.filter(pk__in=id_list):
             try:
-                documents.append(mapping_type.extract_document(obj.id, obj))
-            except StandardError as exc:
+                documents.append(mapping_type.extract_document(obj.pk, obj))
+            except Exception as exc:
                 log.exception('Unable to extract document {0}: {1}'.format(
-                        obj, repr(exc)))
+                              obj, repr(exc)))
 
         if documents:
-            mapping_type.bulk_index(documents, id_field='id', es=es, index=index)
+            mapping_type.bulk_index(documents, id_field=model._meta.pk.name, es=es, index=index)
 
 
 @task
diff --git a/elasticutils/contrib/django/tests/__init__.py b/elasticutils/contrib/django/tests/__init__.py
index 7941d60..b3ce8bc 100644
--- a/elasticutils/contrib/django/tests/__init__.py
+++ b/elasticutils/contrib/django/tests/__init__.py
@@ -13,10 +13,16 @@ def reset_model_cache():
     del _model_cache[0:]
 
 
+class FakePK():
+    name = 'id'
+
+
 class Meta(object):
     def __init__(self, db_table):
         self.db_table = db_table
 
+    pk = FakePK()
+
 
 class SearchQuerySet(object):
     # Yes. This is kind of crazy, but ... whatever.
@@ -28,8 +34,8 @@ def get(self, pk):
         pk = int(pk)
         return [m for m in _model_cache if m.id == pk][0]
 
-    def filter(self, id__in=None):
-        self.steps.append(('filter', id__in))
+    def filter(self, pk__in=None):
+        self.steps.append(('filter', pk__in))
         return self
 
     def order_by(self, *fields):
@@ -89,6 +95,10 @@ def __init__(self, **kw):
             setattr(self, key, kw[key])
         _model_cache.append(self)
 
+    @property
+    def pk(self):
+        return self.id
+
 
 class FakeDjangoMappingType(MappingType, Indexable):
     @classmethod