diff --git a/mayan/apps/dependencies/classes.py b/mayan/apps/dependencies/classes.py
index 02d3f07bb9..bb2173546a 100644
--- a/mayan/apps/dependencies/classes.py
+++ b/mayan/apps/dependencies/classes.py
@@ -30,6 +30,8 @@ from mayan.apps.storage.utils import mkdtemp
 from .algorithms import HashAlgorithm
 from .exceptions import DependenciesException
 
+logger = logging.getLogger(__name__)
+
 
 class Provider(object):
     """Base provider class"""
diff --git a/mayan/apps/documents/tests/test_models.py b/mayan/apps/documents/tests/test_models.py
index 740be18054..cc251cc754 100644
--- a/mayan/apps/documents/tests/test_models.py
+++ b/mayan/apps/documents/tests/test_models.py
@@ -12,7 +12,7 @@ from ..models import (
 
 from .base import GenericDocumentTestCase
 from .literals import (
-    TEST_DOCUMENT_TYPE_LABEL, TEST_DOCUMENT_PATH, TEST_MULTI_PAGE_TIFF_PATH,
+    TEST_DOCUMENT_TYPE_LABEL, TEST_MULTI_PAGE_TIFF_PATH,
     TEST_PDF_INDIRECT_ROTATE_PATH, TEST_OFFICE_DOCUMENT_PATH,
     TEST_SMALL_DOCUMENT_CHECKSUM, TEST_SMALL_DOCUMENT_FILENAME,
     TEST_SMALL_DOCUMENT_MIMETYPE, TEST_SMALL_DOCUMENT_PATH,
diff --git a/mayan/apps/task_manager/apps.py b/mayan/apps/task_manager/apps.py
index 6c5840883a..00996c6528 100644
--- a/mayan/apps/task_manager/apps.py
+++ b/mayan/apps/task_manager/apps.py
@@ -13,7 +13,6 @@ from .links import (
     link_queue_scheduled_task_list, link_queue_reserved_task_list,
     link_task_manager
 )
-from .links import link_task_manager
 
 
 class TaskManagerApp(MayanAppConfig):