diff --git a/magnum/tests/unit/api/controllers/v1/test_bay.py b/magnum/tests/unit/api/controllers/v1/test_bay.py
index 5554e001bc..5b37907683 100644
--- a/magnum/tests/unit/api/controllers/v1/test_bay.py
+++ b/magnum/tests/unit/api/controllers/v1/test_bay.py
@@ -204,9 +204,10 @@ class TestListBay(api_base.FunctionalTest):
         self.assertIn('links', response.keys())
         self.assertEqual(2, len(response['links']))
         self.assertIn(uuid, response['links'][0]['href'])
-        for l in response['links']:
-            bookmark = l['rel'] == 'bookmark'
-            self.assertTrue(self.validate_link(l['href'], bookmark=bookmark))
+        for link in response['links']:
+            bookmark = link['rel'] == 'bookmark'
+            self.assertTrue(self.validate_link(link['href'],
+                                               bookmark=bookmark))
 
     def test_collection_links(self):
         for id_ in range(5):
diff --git a/magnum/tests/unit/api/controllers/v1/test_baymodel.py b/magnum/tests/unit/api/controllers/v1/test_baymodel.py
index b0f5ff86d1..1929dee222 100644
--- a/magnum/tests/unit/api/controllers/v1/test_baymodel.py
+++ b/magnum/tests/unit/api/controllers/v1/test_baymodel.py
@@ -158,9 +158,10 @@ class TestListBayModel(api_base.FunctionalTest):
         self.assertIn('links', response.keys())
         self.assertEqual(2, len(response['links']))
         self.assertIn(uuid, response['links'][0]['href'])
-        for l in response['links']:
-            bookmark = l['rel'] == 'bookmark'
-            self.assertTrue(self.validate_link(l['href'], bookmark=bookmark))
+        for link in response['links']:
+            bookmark = link['rel'] == 'bookmark'
+            self.assertTrue(self.validate_link(link['href'],
+                                               bookmark=bookmark))
 
     def test_collection_links(self):
         for id_ in range(5):
diff --git a/magnum/tests/unit/api/controllers/v1/test_certificate.py b/magnum/tests/unit/api/controllers/v1/test_certificate.py
index fcf621782f..a171a5ddb7 100644
--- a/magnum/tests/unit/api/controllers/v1/test_certificate.py
+++ b/magnum/tests/unit/api/controllers/v1/test_certificate.py
@@ -115,9 +115,10 @@ class TestGetCaCertificate(api_base.FunctionalTest):
         self.assertIn('links', response.keys())
         self.assertEqual(2, len(response['links']))
         self.assertIn(self.cluster.uuid, response['links'][0]['href'])
-        for l in response['links']:
-            bookmark = l['rel'] == 'bookmark'
-            self.assertTrue(self.validate_link(l['href'], bookmark=bookmark))
+        for link in response['links']:
+            bookmark = link['rel'] == 'bookmark'
+            self.assertTrue(self.validate_link(link['href'],
+                                               bookmark=bookmark))
 
 
 class TestPost(api_base.FunctionalTest):
diff --git a/magnum/tests/unit/api/controllers/v1/test_cluster.py b/magnum/tests/unit/api/controllers/v1/test_cluster.py
index 5784cd1219..b2f2d68049 100644
--- a/magnum/tests/unit/api/controllers/v1/test_cluster.py
+++ b/magnum/tests/unit/api/controllers/v1/test_cluster.py
@@ -226,9 +226,9 @@ class TestListCluster(api_base.FunctionalTest):
         self.assertIn('links', response.keys())
         self.assertEqual(2, len(response['links']))
         self.assertIn(uuid, response['links'][0]['href'])
-        for l in response['links']:
-            bookmark = l['rel'] == 'bookmark'
-            self.assertTrue(self.validate_link(l['href'],
+        for link in response['links']:
+            bookmark = link['rel'] == 'bookmark'
+            self.assertTrue(self.validate_link(link['href'],
                                                bookmark=bookmark))
 
     def test_collection_links(self):
diff --git a/magnum/tests/unit/api/controllers/v1/test_cluster_template.py b/magnum/tests/unit/api/controllers/v1/test_cluster_template.py
index 3ff9b69803..848d669ccc 100644
--- a/magnum/tests/unit/api/controllers/v1/test_cluster_template.py
+++ b/magnum/tests/unit/api/controllers/v1/test_cluster_template.py
@@ -217,9 +217,9 @@ class TestListClusterTemplate(api_base.FunctionalTest):
         self.assertIn('links', response.keys())
         self.assertEqual(2, len(response['links']))
         self.assertIn(uuid, response['links'][0]['href'])
-        for l in response['links']:
-            bookmark = l['rel'] == 'bookmark'
-            self.assertTrue(self.validate_link(l['href'],
+        for link in response['links']:
+            bookmark = link['rel'] == 'bookmark'
+            self.assertTrue(self.validate_link(link['href'],
                                                bookmark=bookmark))
 
     def test_collection_links(self):
diff --git a/magnum/tests/unit/api/controllers/v1/test_federation.py b/magnum/tests/unit/api/controllers/v1/test_federation.py
index e5f25bb93b..6b7a0b319d 100644
--- a/magnum/tests/unit/api/controllers/v1/test_federation.py
+++ b/magnum/tests/unit/api/controllers/v1/test_federation.py
@@ -155,9 +155,9 @@ class TestListFederation(api_base.FunctionalTest):
         self.assertIn('links', response.keys())
         self.assertEqual(2, len(response['links']))
         self.assertIn(uuid, response['links'][0]['href'])
-        for l in response['links']:
-            bookmark = l['rel'] == 'bookmark'
-            self.assertTrue(self.validate_link(l['href'],
+        for link in response['links']:
+            bookmark = link['rel'] == 'bookmark'
+            self.assertTrue(self.validate_link(link['href'],
                                                bookmark=bookmark))
 
     def test_collection_links(self):