diff --git a/pyproject.toml b/pyproject.toml
index b3c6b1c0238654bedd1ba90b09c8d98541e1c73f..55b21cbbf49f926e74d615e0a98b5c6b7cf0ab09 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,7 +89,8 @@ build-backend = "setuptools.build_meta"
 
 [tool.setuptools.package-data]
 pystencils = [
-    "include/*.h",
+    "include/**/*.h",
+    "include/**/*.hpp",
     "jit/cpu/*.tmpl.cpp",
     "boundaries/createindexlistcython.pyx"
 ]