diff --git a/setup.py b/setup.py
index 3278d18739c9b8ec1de1ec10afb10ffe6347e7ee..430e082736788e60af564d47bcae2e50a9523867 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ setup(
     packages=['validata_core'],
     include_package_data=True,
     package_data={
-        'validata_core': ['schemas.toml', 'validata_spec.json'],
+        'validata_core': ['schemas.toml', 'validata_spec.json', 'custom_checks/*'],
     },
     install_requires=[
         'goodtables',