diff --git a/setup.py b/setup.py
index 575fddf..3fac0dd 100644
--- a/setup.py
+++ b/setup.py
@@ -123,5 +123,4 @@ def get_require_version(name):
     test_suite='tests',
     test_loader='trytond.test_loader:Loader',
     tests_require=tests_require,
-    use_2to3=True,
 )