diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 4104af3e..5bca75d8 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -122,6 +122,7 @@ set(APIDOCS
   nghttp2_session_upgrade2.rst
   nghttp2_session_want_read.rst
   nghttp2_session_want_write.rst
+  nghttp2_set_debug_vprintf_callback.rst
   nghttp2_stream_get_first_child.rst
   nghttp2_stream_get_next_sibling.rst
   nghttp2_stream_get_parent.rst
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 3882ad55..ba6b5104 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -146,6 +146,7 @@ APIDOCS= \
 	nghttp2_session_upgrade2.rst \
 	nghttp2_session_want_read.rst \
 	nghttp2_session_want_write.rst \
+	nghttp2_set_debug_vprintf_callback.rst \
 	nghttp2_stream_get_first_child.rst \
 	nghttp2_stream_get_next_sibling.rst \
 	nghttp2_stream_get_parent.rst \