diff --git a/setup.py b/setup.py
index 410b982..29763a1 100755
--- a/setup.py
+++ b/setup.py
@@ -101,6 +101,7 @@ setuptools.setup(
         os.path.join(
             os.path.dirname(__file__),
             'README.txt'), encoding='utf-8').read(),
+    long_description_content_type='text/plain',
     url='http://dev.entrouvert.org/projects/eopayment/',
     author="Entr'ouvert",
     author_email="info@entrouvert.com",