diff --git a/cpmdparser/versions/cpmd41/input_data/__init__.py b/cpmdparser/versions/cpmd41/input_data/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/setup.py b/setup.py
index 159d49ea2be0f184a8ad5dea99f911c56728e331..d4b5423fd36684d5a8a2a9df3a07e3683c9ffb7d 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,9 @@ def main():
         license='GPL3',
         package_dir={'': './'},
         packages=find_packages(),
-        include_package_data=True,
+        package_data={
+            'cpmdparser.versions.cpmd41': ['input_data/cpmd_input_tree.pickle'],
+        },
         install_requires=[
             'nomadcore',
         ],