diff --git a/moto/secretsmanager/models.py b/moto/secretsmanager/models.py
index b46e04d6c..7040d4136 100644
--- a/moto/secretsmanager/models.py
+++ b/moto/secretsmanager/models.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
 import time
diff --git a/tests/test_secretsmanager/test_secretsmanager.py b/tests/test_secretsmanager/test_secretsmanager.py
index 7273b5c21..606f775b2 100644
--- a/tests/test_secretsmanager/test_secretsmanager.py
+++ b/tests/test_secretsmanager/test_secretsmanager.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
 import boto3
diff --git a/tests/test_secretsmanager/test_server.py b/tests/test_secretsmanager/test_server.py
index a1491dc8f..bc8b9700d 100644
--- a/tests/test_secretsmanager/test_server.py
+++ b/tests/test_secretsmanager/test_server.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
 import json