diff --git a/setup.cfg b/setup.cfg
index 7d68d85..7b63c15 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -24,6 +24,9 @@ install_requires =
   cryptography>=3.3.2
 python_requires = >=3.6
 
+[options.package_data]
+pscheck = certs/*.pem
+
 [options.entry_points]
 console_scripts =
     pscheck = pscheck.pscheck:main