diff --git a/.gitignore b/.gitignore
index 1965ff5..637227d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,6 @@ django_admin_sortable.egg-info
 atlassian-ide-plugin.xml
 django-admin-sortable.sublime-project
 django-admin-sortable.sublime-workspace
+adminsortable.sublime-project
+adminsortable.sublime-workspace
 .ropeproject
\ No newline at end of file
diff --git a/adminsortable/templates/adminsortable/edit_inline/stacked.html b/adminsortable/templates/adminsortable/edit_inline/stacked.html
index 9a62bf8..ee6a5e1 100644
--- a/adminsortable/templates/adminsortable/edit_inline/stacked.html
+++ b/adminsortable/templates/adminsortable/edit_inline/stacked.html
@@ -17,7 +17,7 @@
         {% if inline_admin_form.has_auto_field %}{{ inline_admin_form.pk_field.field }}{% endif %}
         {{ inline_admin_form.fk_field.field }}
         {% if inline_admin_form.original %}
-            <input type="hidden" name="admin_sorting_url" value="{% get_do_sorting_url inline_admin_form.original.model_type_id %}" />
+            <input type="hidden" name="admin_sorting_url" value="{% get_do_sorting_url inline_admin_form.original %}" />
         {% endif %}
     </div>
     {% endfor %}
diff --git a/sample_project/adminsortable.sqlite b/sample_project/adminsortable.sqlite
index 2cd158a..84529e5 100644
Binary files a/sample_project/adminsortable.sqlite and b/sample_project/adminsortable.sqlite differ