diff --git a/djadmin2/templates/admin2/bootstrap/delete_selected_confirmation.html b/djadmin2/templates/admin2/bootstrap/delete_selected_confirmation.html
index 72f1452..111d8c2 100644
--- a/djadmin2/templates/admin2/bootstrap/delete_selected_confirmation.html
+++ b/djadmin2/templates/admin2/bootstrap/delete_selected_confirmation.html
@@ -15,7 +15,7 @@
     <input type="hidden" name="confirmed" value="yes" />
     <input type="hidden" name="action" value="delete_selected" />
     {% for item in queryset %}
-    <input type="hidden" name="selected_model_id" value="{{ item.id }}" />
+    <input type="hidden" name="selected_model_pk" value="{{ item.pk }}" />
     {% endfor %}
     <input type="submit"/>
 </form>
diff --git a/djadmin2/templates/admin2/bootstrap/model_list.html b/djadmin2/templates/admin2/bootstrap/model_list.html
index 1f4ca99..d8bb933 100644
--- a/djadmin2/templates/admin2/bootstrap/model_list.html
+++ b/djadmin2/templates/admin2/bootstrap/model_list.html
@@ -38,7 +38,7 @@
                 <tbody>
                     {% for obj in object_list %}
                     <tr>
-                        <td><input type="checkbox" class="model-select" name="selected_model_id" value="{{obj.id}}"></td>
+                        <td><input type="checkbox" class="model-select" name="selected_model_pk" value="{{ obj.pk }}"></td>
                         <td>
                             {{ obj }} <a href="{% url view|admin2_urlname:'detail' pk=obj.pk %}">detail</a>
                             {# if has_edit_permission #}
diff --git a/djadmin2/views.py b/djadmin2/views.py
index 3e3ea73..724bb05 100644
--- a/djadmin2/views.py
+++ b/djadmin2/views.py
@@ -29,8 +29,8 @@ class ModelListView(Admin2Mixin, generic.ListView):
         # This is where we handle actions
         action_name = request.POST['action']
         action_func = self.get_actions()[action_name]['func']
-        selected_model_ids = request.POST.getlist('selected_model_id')
-        queryset = self.model.objects.filter(pk__in=selected_model_ids)
+        selected_model_pks = request.POST.getlist('selected_model_pk')
+        queryset = self.model.objects.filter(pk__in=selected_model_pks)
         response = action_func(request, queryset)
         if response is None:
             return HttpResponseRedirect(self.get_success_url())
diff --git a/example/blog/tests/test_views.py b/example/blog/tests/test_views.py
index e378e6e..0599ca1 100644
--- a/example/blog/tests/test_views.py
+++ b/example/blog/tests/test_views.py
@@ -36,13 +36,13 @@ class PostListTest(BaseIntegrationTest):
 
     def test_delete_selected_post(self):
         post = Post.objects.create(title="a_post_title", body="body")
-        params = {'action': 'delete_selected', 'selected_model_id': str(post.id)}
+        params = {'action': 'delete_selected', 'selected_model_pk': str(post.pk)}
         response = self.client.post(reverse("admin2:blog_post_index"), params)
         self.assertInHTML('<p>Are you sure you want to delete the selected post?</p>', response.content)
 
     def test_delete_selected_post_confirmation(self):
         post = Post.objects.create(title="a_post_title", body="body")
-        params = {'action': 'delete_selected', 'selected_model_id': str(post.id), 'confirmed': 'yes'}
+        params = {'action': 'delete_selected', 'selected_model_pk': str(post.pk), 'confirmed': 'yes'}
         response = self.client.post(reverse("admin2:blog_post_index"), params)
         self.assertRedirects(response, reverse("admin2:blog_post_index"))
 
@@ -141,7 +141,7 @@ class PostDeleteActionTest(BaseIntegrationTest):
         p2 = Post.objects.create(title="A Post Title", body="body")
         post_data = {
             'action': 'delete_selected',
-            'selected_model_id': [p1.id, p2.id]
+            'selected_model_pk': [p1.pk, p2.pk]
         }
         response = self.client.post(reverse("admin2:blog_post_index"),
                                     post_data)
@@ -153,7 +153,7 @@ class PostDeleteActionTest(BaseIntegrationTest):
         p2 = Post.objects.create(title="A Post Title", body="body")
         post_data = {
             'action': 'delete_selected',
-            'selected_model_id': [p1.id, p2.id],
+            'selected_model_pk': [p1.pk, p2.pk],
             'confirmed': 'yes'
         }
         response = self.client.post(reverse("admin2:blog_post_index"),