diff --git a/__init__.py b/__init__.py
index 3c250096b7..b083dc82bb 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,4 +1,4 @@
 #This file is part of Tryton.  The COPYRIGHT file at the top level of
 #this repository contains the full copyright notices and license terms.
 
-from sale import *
+from .sale import *
diff --git a/tests/__init__.py b/tests/__init__.py
index 84d3729c4d..82d80c45ba 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,4 +1,4 @@
 #This file is part of Tryton.  The COPYRIGHT file at the top level of
 #this repository contains the full copyright notices and license terms.
 
-from test_analytic_sale import suite
+from .test_analytic_sale import suite