diff --git a/aleksis/core/mixins.py b/aleksis/core/mixins.py
index b55a700db5390895c2c827a9ec13931bc55dbac9..b4864b35461aea5cf1f88b3788dd0a905f0ca6e3 100644
--- a/aleksis/core/mixins.py
+++ b/aleksis/core/mixins.py
@@ -14,7 +14,7 @@ from django.db import models
 from django.db.models import JSONField, QuerySet
 from django.db.models.fields import CharField, TextField
 from django.forms.forms import BaseForm
-from django.forms.models import ModelForm, ModelFormMetaclass
+from django.forms.models import ModelForm, ModelFormMetaclass, fields_for_model
 from django.http import HttpResponse
 from django.utils.functional import classproperty, lazy
 from django.utils.translation import gettext as _