diff --git a/__init__.py b/__init__.py
index 5c8fb9f8a7..981f76ae6d 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,6 +1,6 @@
 #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 purchase import *
-from configuration import *
-from invoice import *
+from .purchase import *
+from .configuration import *
+from .invoice import *
diff --git a/tests/__init__.py b/tests/__init__.py
index 56a98e737b..fdda836297 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_purchase import suite
+from .test_purchase import suite