diff --git a/djongo/models/fields.py b/djongo/models/fields.py
index <HASH>..<HASH> 100644
--- a/djongo/models/fields.py
+++ b/djongo/models/fields.py
@@ -49,8 +49,7 @@ def make_mdl(model, model_dict):
 

 

 def useful_field(field):

-    return field.concrete and not (field.is_relation

-                                   or isinstance(field, (AutoField, BigAutoField)))

+    return field.concrete and not isinstance(field, (AutoField, BigAutoField))

 

 

 class ModelSubterfuge:
Fixed embedded relations (#<I>)