diff --git a/setup.py b/setup.py
index 71f80f1..6c9f45e 100644
--- a/setup.py
+++ b/setup.py
@@ -159,6 +159,7 @@
         "Python-based version of the Barbieri/Van Hove phase shift calculation package for LEED/XPD modelling"
     ),
     long_description=(None if not os.path.exists(README) else open(README).read()),
+    long_description_content_type="text/markdown",
     classifiers=[
         "Development Status :: 4 - Beta",
         "Environment :: Console",