diff --git a/awx/api/generics.py b/awx/api/generics.py
index 6b4b7c6c3a..b4fbb45095 100644
--- a/awx/api/generics.py
+++ b/awx/api/generics.py
@@ -452,7 +452,7 @@ class SubListCreateAttachDetachAPIView(SubListCreateAPIView):
 
 class DeleteLastUnattachLabelMixin(object):
     def unattach(self, request, *args, **kwargs):
-        (sub_id, res) = super(DeleteLastUnattachLabelMixin, self).unattach_validate(request, *args, **kwargs)
+        (sub_id, res) = super(DeleteLastUnattachLabelMixin, self).unattach_validate(request)
         if res:
             return res
 
diff --git a/awx/api/views.py b/awx/api/views.py
index 59f7adb745..dec8307e05 100644
--- a/awx/api/views.py
+++ b/awx/api/views.py
@@ -2380,7 +2380,7 @@ class JobTemplateNotificationTemplatesSuccessList(SubListCreateAttachDetachAPIVi
     parent_model = JobTemplate
     relationship = 'notification_templates_success'
 
-class JobTemplateLabelList(SubListCreateAttachDetachAPIView, DeleteLastUnattachLabelMixin):
+class JobTemplateLabelList(DeleteLastUnattachLabelMixin, SubListCreateAttachDetachAPIView):
 
     model = Label
     serializer_class = LabelSerializer
diff --git a/awx/main/tests/unit/api/test_generics.py b/awx/main/tests/unit/api/test_generics.py
index 42d755abcf..ea925d68cb 100644
--- a/awx/main/tests/unit/api/test_generics.py
+++ b/awx/main/tests/unit/api/test_generics.py
@@ -138,7 +138,7 @@ class TestDeleteLastUnattachLabelMixin:
 
         view.unattach(mock_request, None, None)
 
-        super.unattach_validate.assert_called_with(mock_request, None, None)
+        super.unattach_validate.assert_called_with(mock_request)
         super.unattach_by_id.assert_called_with(mock_request, mock_sub_id)
         mock_label.is_detached.assert_called_with()
         mock_label.objects.get.assert_called_with(id=mock_sub_id)
@@ -154,7 +154,7 @@ class TestDeleteLastUnattachLabelMixin:
 
         res = view.unattach(mock_request, None, None)
 
-        super.unattach_validate.assert_called_with(mock_request, None, None)
+        super.unattach_validate.assert_called_with(mock_request)
         assert mock_response == res
 
 class TestParentMixin:
diff --git a/awx/main/tests/unit/api/test_views.py b/awx/main/tests/unit/api/test_views.py
index 27442286c6..a03ef7adae 100644
--- a/awx/main/tests/unit/api/test_views.py
+++ b/awx/main/tests/unit/api/test_views.py
@@ -9,6 +9,7 @@ from django.contrib.contenttypes.models import ContentType
 from awx.api.views import (
     ApiV1RootView,
     TeamRolesList,
+    JobTemplateLabelList,
 )
 
 from awx.main.models import (
@@ -62,6 +63,15 @@ class TestApiV1RootView:
         for endpoint in endpoints:
             assert endpoint in data_arg
 
+class TestJobTemplateLabelList:
+    def test_inherited_mixin_unattach(self):
+        with mock.patch('awx.api.generics.DeleteLastUnattachLabelMixin.unattach') as mixin_unattach:
+            view = JobTemplateLabelList()
+            mock_request = mock.MagicMock()
+            
+            super(JobTemplateLabelList, view).unattach(mock_request, None, None)
+            assert mixin_unattach.called_with(mock_request, None, None)
+
 @pytest.mark.parametrize("url", ["/team/1/roles", "/role/1/teams"])
 def test_team_roles_list_post_org_roles(url):
     with mock.patch('awx.api.views.Role.objects.get') as role_get, \
@@ -84,3 +94,4 @@ def test_team_roles_list_post_org_roles(url):
 
         assert response.status_code == 400
         assert 'cannot assign' in response.content
+