diff --git a/testapp/forms/person.py b/testapp/forms/person.py
index d343f1e6..b00e7453 100644
--- a/testapp/forms/person.py
+++ b/testapp/forms/person.py
@@ -3,6 +3,8 @@
 from django.core.exceptions import ValidationError
 from django.forms import fields, forms, models, widgets
 
+from formset.renderers.bootstrap import FormRenderer as BootstrapFormRenderer
+from formset.utils import FormMixin
 from formset.widgets import DateInput, Selectize, SelectizeMultiple, UploadedFileInput
 
 from testapp.models import PersonModel
@@ -38,6 +40,18 @@ def clean(self):
         return cd
 
 
+class PersonFormBootstrapRenderer(FormMixin, PersonForm):
+    """
+    This form class shows how to use a custom renderer. The form then can be rendered using ``{{ form }}``
+    """
+    default_renderer = BootstrapFormRenderer(
+        field_css_classes='row mb-3',
+        label_css_classes='col-sm-3',
+        control_css_classes='col-sm-9',
+    )
+
+
+
 class ButtonActionsForm(forms.Form):
     """
     This is a simple Django Form with just one input field. It is used to show how to use
diff --git a/testapp/templates/bootstrap/person-form.html b/testapp/templates/bootstrap/person-form.html
new file mode 100644
index 00000000..006ad50c
--- /dev/null
+++ b/testapp/templates/bootstrap/person-form.html
@@ -0,0 +1,9 @@
+{% extends "bootstrap/base.html" %}
+{% load render_form from formsetify %}
+
+{% block main-content %}
+<django-formset endpoint="{{ request.path }}"{% if force_submission %} force-submission{% endif %}{% if withhold_feedback %} withhold-feedback="{{ withhold_feedback }}"{% endif %} csrf-token="{{ csrf_token }}">
+	{% render_form form "bootstrap" field_classes="row mb-3" label_classes="col-sm-3" control_classes="col-sm-9" %}
+	{% include "bootstrap/buttons.html" %}
+</django-formset>
+{% endblock %}
\ No newline at end of file
diff --git a/testapp/views.py b/testapp/views.py
index 7f8b52ed..0e21e5fa 100644
--- a/testapp/views.py
+++ b/testapp/views.py
@@ -38,7 +38,8 @@
 from testapp.forms.complete import CompleteForm
 from testapp.forms.contact import (
     SimpleContactCollection, ContactCollection, ContactCollectionList, IntermediateContactCollectionList,
-    SortableContactCollection, SortableContactCollectionList)
+    SortableContactCollection, SortableContactCollectionList
+)
 from testapp.forms.birthdate import BirthdateBoxForm, BirthdateCalendarForm, BirthdateInputForm, BirthdatePickerForm
 from testapp.forms.booking import BookingBoxForm, BookingCalendarForm, BookingPickerForm
 from testapp.forms.country import CountryForm
@@ -49,7 +50,9 @@
 from testapp.forms.moment import MomentBoxForm, MomentCalendarForm, MomentInputForm, MomentPickerForm
 from testapp.forms.moon import MoonForm, MoonCalendarRenderer
 from testapp.forms.opinion import OpinionForm
-from testapp.forms.person import ButtonActionsForm, sample_person_data, ModelPersonForm
+from testapp.forms.person import (
+    ButtonActionsForm, sample_person_data, ModelPersonForm, PersonForm, PersonFormBootstrapRenderer,
+)
 from testapp.forms.phone import PhoneForm
 from testapp.forms.poll import ModelPollForm, PollCollection
 from testapp.forms.profile import ProfileCollection
@@ -173,7 +176,8 @@ def form_valid(self, form):
 
     def get_form_class(self):
         form_class = super().get_form_class()
-        assert not issubclass(form_class, FormMixin)
+        if issubclass(form_class, FormMixin):
+            return form_class
         attrs = self.get_css_classes()
         attrs.pop('button_css_classes', None)
         renderer_class = import_string(f'formset.renderers.{self.framework}.FormRenderer')
@@ -612,6 +616,14 @@ class CompleteForm(FormMixin, forms.Form):
         form_class=ModelPersonForm,
         model=PersonModel,
     ), name='person'),
+    path('person-bootstrap-renderer', DemoFormView.as_view(
+        form_class=PersonFormBootstrapRenderer,
+        template_name='testapp/extended-form.html',
+    ), name='person-bootstrap-renderer'),
+    path('person-bootstrap-params', DemoFormView.as_view(
+        form_class=PersonForm,
+        template_name='bootstrap/person-form.html',
+    ), name='person-bootstrap-params'),
     path('poll', DemoModelFormView.as_view(
         form_class=ModelPollForm,
         model=PollModel,