diff --git a/MANIFEST.in b/MANIFEST.in
index 25699556d2..fc0b03eaf2 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -10,3 +10,4 @@ include view/*.xml
 include *.odt
 include locale/*.po
 include doc/*
+include tests/*.rst
diff --git a/setup.py b/setup.py
index b231cb4089..3d962ab19f 100644
--- a/setup.py
+++ b/setup.py
@@ -45,7 +45,8 @@ setup(name='trytond_purchase',
         ],
     package_data={
         'trytond.modules.purchase': (info.get('xml', [])
-            + ['tryton.cfg', 'view/*.xml', 'locale/*.po', 'purchase.odt']),
+            + ['tryton.cfg', 'view/*.xml', 'locale/*.po', 'tests/*.rst',
+                'purchase.odt']),
         },
     classifiers=[
         'Development Status :: 5 - Production/Stable',