diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -16,6 +16,7 @@ setup(name='pyroma',
           "Programming Language :: Python :: 3.2",
           "Programming Language :: Python :: 3.3",
           "Programming Language :: Python :: 3.4",
+          "Programming Language :: Python :: Implementation :: PyPy",
       ],
       keywords='pypi quality testing',
       author='Lennart Regebro',
Tested that it runs under PyPy.