diff --git a/mayan/apps/documents/statistics.py b/mayan/apps/documents/statistics.py
index 64a8e00581..827af15dea 100644
--- a/mayan/apps/documents/statistics.py
+++ b/mayan/apps/documents/statistics.py
@@ -5,7 +5,7 @@ from django.db.models import Avg, Count, Min, Max
 
 from common.utils import pretty_size, pretty_size_10
 
-from .conf.settings import STORAGE_BACKEND
+from .runtime import storage_backend
 from .models import Document, DocumentType, DocumentPage, DocumentVersion
 
 
@@ -13,7 +13,7 @@ def get_used_size(path, file_list):
     total_size = 0
     for filename in file_list:
         try:
-            total_size += STORAGE_BACKEND().size(STORAGE_BACKEND.separator.join([path, filename]))
+            total_size += storage_backend.size(storage_backend.separator.join([path, filename]))
         except OSError:
             pass
 
@@ -22,7 +22,7 @@ def get_used_size(path, file_list):
 
 def storage_count(path=u'.'):
     try:
-        directories, files = STORAGE_BACKEND().listdir(path)
+        directories, files = storage_backend.listdir(path)
     except OSError:
         return 0, 0
     else:
diff --git a/mayan/apps/documents/views.py b/mayan/apps/documents/views.py
index e6c519ce81..880460a989 100644
--- a/mayan/apps/documents/views.py
+++ b/mayan/apps/documents/views.py
@@ -33,7 +33,7 @@ from navigation.utils import resolve_to_name
 from permissions.models import Permission
 
 from .events import HISTORY_DOCUMENT_EDITED
-from .conf.settings import (PREVIEW_SIZE, STORAGE_BACKEND, ZOOM_PERCENT_STEP,
+from .conf.settings import (PREVIEW_SIZE, ZOOM_PERCENT_STEP,
     ZOOM_MAX_LEVEL, ZOOM_MIN_LEVEL, ROTATION_STEP, RECENT_COUNT)
 from .forms import (DocumentForm_edit, DocumentPropertiesForm,
         DocumentPreviewForm, DocumentPageForm,
@@ -51,6 +51,7 @@ from .permissions import (PERMISSION_DOCUMENT_PROPERTIES_EDIT,
     PERMISSION_DOCUMENT_VERSION_REVERT, PERMISSION_DOCUMENT_TYPE_EDIT,
     PERMISSION_DOCUMENT_TYPE_DELETE, PERMISSION_DOCUMENT_TYPE_CREATE,
     PERMISSION_DOCUMENT_TYPE_VIEW)
+from .runtime import storage_backend
 
 logger = logging.getLogger(__name__)
 
@@ -532,7 +533,7 @@ def document_missing_list(request):
     else:
         missing_id_list = []
         for document in Document.objects.only('id',):
-            if not STORAGE_BACKEND().exists(document.file):
+            if not storate_backend.exists(document.file):
                 missing_id_list.append(document.pk)
 
         return render_to_response('generic_list.html', {