diff --git a/setup.py b/setup.py
index 6dab726c..4b71d0b9 100644
--- a/setup.py
+++ b/setup.py
@@ -25,6 +25,7 @@ def run_tests(self):
         open("README.rst").read() + "\n" +
         open(os.path.join("docs", "HISTORY.txt")).read()
     ),
+    long_description_content_type="text/x-rst",
     classifiers=[
         "Topic :: Scientific/Engineering :: GIS",
         "Programming Language :: Python",