diff --git a/setup.py b/setup.py
index 0b06493..7d1f52b 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,8 @@ def read(fname):
     description='Basic notebook checks. Do they run? Do they contain lint?',
     version = get_setup_version('nbsmoke'),
     url='https://github.com/pyviz-dev/nbsmoke',
-    long_description=read('README.md'),    
+    long_description=read('README.md'),
+    long_description_content_type="text/markdown",
     author='pyviz contributors',
     author_email = "dev@pyviz.org",
     license='BSD-3',