diff --git a/mayan/apps/documents/tests/test_api.py b/mayan/apps/documents/tests/test_api.py
index 0ddcc9164f..2a16ea74ae 100644
--- a/mayan/apps/documents/tests/test_api.py
+++ b/mayan/apps/documents/tests/test_api.py
@@ -154,11 +154,11 @@ class DocumentAPITestCase(DocumentTestMixin, BaseAPITestCase):
     auto_upload_document = False
 
     def _request_document_upload(self):
-        with open(TEST_DOCUMENT_PATH, mode='rb') as file_descriptor:
+        with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
             return self.post(
                 viewname='rest_api:document-list', data={
                     'document_type': self.test_document_type.pk,
-                    'file': file_descriptor
+                    'file': file_object
                 }
             )
 
@@ -208,12 +208,12 @@ class DocumentAPITestCase(DocumentTestMixin, BaseAPITestCase):
         # is the latest.
         time.sleep(1)
 
-        with open(TEST_DOCUMENT_PATH, mode='rb') as file_descriptor:
+        with open(TEST_DOCUMENT_PATH, mode='rb') as file_object:
             return self.post(
                 viewname='rest_api:document-version-list', kwargs={
                     'pk': self.test_document.pk,
                 }, data={
-                    'comment': '', 'file': file_descriptor,
+                    'comment': '', 'file': file_object,
                 }
             )
 
diff --git a/mayan/apps/metadata/tests/test_wizard_steps.py b/mayan/apps/metadata/tests/test_wizard_steps.py
index 2d98671079..cd0e49497e 100644
--- a/mayan/apps/metadata/tests/test_wizard_steps.py
+++ b/mayan/apps/metadata/tests/test_wizard_steps.py
@@ -45,10 +45,10 @@ class DocumentUploadMetadataTestCase(MetadataTypeTestMixin, GenericDocumentViewT
         )
 
         # Upload the test document
-        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_descriptor:
+        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_object:
             response = self.post(
                 path=url.to_string(), data={
-                    'document-language': 'eng', 'source-file': file_descriptor,
+                    'document-language': 'eng', 'source-file': file_object,
                     'document_type_id': self.test_document_type.pk,
                 }
             )
@@ -72,10 +72,10 @@ class DocumentUploadMetadataTestCase(MetadataTypeTestMixin, GenericDocumentViewT
         )
 
         # Upload the test document
-        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_descriptor:
+        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_object:
             response = self.post(
                 path=url.to_string(), data={
-                    'document-language': 'eng', 'source-file': file_descriptor,
+                    'document-language': 'eng', 'source-file': file_object,
                     'document_type_id': self.test_document_type.pk,
                 }
             )
diff --git a/mayan/apps/sources/tests/test_views.py b/mayan/apps/sources/tests/test_views.py
index 03ecbbc72d..591fecbd69 100644
--- a/mayan/apps/sources/tests/test_views.py
+++ b/mayan/apps/sources/tests/test_views.py
@@ -152,11 +152,11 @@ class DocumentUploadIssueTestCase(GenericDocumentViewTestCase):
         self.assertEqual(WebFormSource.objects.count(), 1)
 
         # Upload the test document
-        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_descriptor:
+        with open(TEST_SMALL_DOCUMENT_PATH, mode='rb') as file_object:
             self.post(
                 viewname='sources:upload_interactive', data={
                     'document-language': 'eng',
-                    'source-file': file_descriptor,
+                    'source-file': file_object,
                     'document_type_id': self.test_document_type.pk
                 }
             )