diff --git a/doc/Makefile.am b/doc/Makefile.am
index 7e6d4ac2..e591f697 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -24,7 +24,8 @@
 SUBDIRS = _themes
 
 EXTRA_DIST = README.rst apiref-header.rst index.rst mkapiref.py \
-	package_README.rst tutorial-client.rst tutorial-server.rst
+	package_README.rst tutorial-client.rst tutorial-server.rst \
+	nghttp2.h.rst nghttp2ver.h.rst
 
 # Makefile for Sphinx documentation
 #