diff --git a/tests/doubles.py b/tests/doubles.py
index 9dbb3ce..2ff1942 100644
--- a/tests/doubles.py
+++ b/tests/doubles.py
@@ -2,6 +2,8 @@
 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
 # for complete details.
 
+from __future__ import absolute_import, division, print_function
+
 from cryptography import utils
 from cryptography.hazmat.primitives import hashes, serialization
 from cryptography.hazmat.primitives.asymmetric import padding