diff --git a/mayan/apps/document_signatures/literals.py b/mayan/apps/document_signatures/literals.py
new file mode 100644
index 0000000000..44464a1cd5
--- /dev/null
+++ b/mayan/apps/document_signatures/literals.py
@@ -0,0 +1,4 @@
+from __future__ import unicode_literals
+
+RETRY_DELAY = 10
+
diff --git a/mayan/apps/document_signatures/tasks.py b/mayan/apps/document_signatures/tasks.py
index 3ee53e69bd..2e90d94b46 100644
--- a/mayan/apps/document_signatures/tasks.py
+++ b/mayan/apps/document_signatures/tasks.py
@@ -6,7 +6,8 @@ from django.apps import apps
 
 from mayan.celery import app
 
-RETRY_DELAY = 10
+from .literals import RETRY_DELAY
+
 logger = logging.getLogger(__name__)