diff --git a/mayan/settings/development_ddt.py b/mayan/settings/development_ddt.py
index 55dad05548..14e1d44fa7 100644
--- a/mayan/settings/development_ddt.py
+++ b/mayan/settings/development_ddt.py
@@ -11,6 +11,6 @@ if 'debug_toolbar' not in INSTALLED_APPS:
         'debug_toolbar',
     )
 
-MIDDLEWARE_CLASSES = (
+MIDDLEWARE = (
     'debug_toolbar.middleware.DebugToolbarMiddleware',
-) + MIDDLEWARE_CLASSES
+) + MIDDLEWARE
diff --git a/mayan/settings/testing/base.py b/mayan/settings/testing/base.py
index 4f5ad241ee..0b89bf6e0a 100644
--- a/mayan/settings/testing/base.py
+++ b/mayan/settings/testing/base.py
@@ -12,8 +12,8 @@ COMMON_PRODUCTION_ERROR_LOG_PATH = '/tmp/mayan-errors.log'
 
 # Remove whitenoise from middlewares. Causes out of memory errors during test
 # suit
-MIDDLEWARE_CLASSES = [
-    cls for cls in MIDDLEWARE_CLASSES if cls != 'whitenoise.middleware.WhiteNoiseMiddleware'
+MIDDLEWARE = [
+    cls for cls in MIDDLEWARE if cls != 'whitenoise.middleware.WhiteNoiseMiddleware'
 ]
 
 # User a simpler password hasher
@@ -38,8 +38,8 @@ CELERY_EAGER_PROPAGATES_EXCEPTIONS = True
 BROKER_BACKEND = 'memory'
 
 # Remove middlewares not used for tests
-MIDDLEWARE_CLASSES = [
-    cls for cls in MIDDLEWARE_CLASSES if cls not in [
+MIDDLEWARE = [
+    cls for cls in MIDDLEWARE if cls not in [
         'common.middleware.error_logging.ErrorLoggingMiddleware',
         'django.middleware.security.SecurityMiddleware',
         'corsheaders.middleware.CorsMiddleware',