diff --git a/setup.py b/setup.py
index 8bf1c6e..22882a6 100755
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@ setuptools.setup(
 	author="SuperStormer",
 	url="https://github.com/SuperStormer/c2logic",
 	project_urls={"Source Code": "https://github.com/SuperStormer/c2logic"},
-	headers=["include/builtins.h"],
+	headers=["include/builtins.h", "include/io.h"],
 	entry_points={"console_scripts": ["c2logic=c2logic.compiler:main"]},
 	install_requires=["pycparser~=2.20"]
 )