diff --git a/doc/api/http2.md b/doc/api/http2.md
index 55c389ef642917..0b76672b3a0bbd 100644
--- a/doc/api/http2.md
+++ b/doc/api/http2.md
@@ -620,6 +620,8 @@ instance's underlying [`net.Socket`].
 added: v8.4.0
 -->
 
+* Extends: {Http2Session}
+
 #### serverhttp2session.altsvc(alt, originOrStream)
 <!-- YAML
 added: v9.4.0
@@ -742,6 +744,8 @@ server.on('stream', (stream) => {
 added: v8.4.0
 -->
 
+* Extends: {Http2Session}
+
 #### Event: 'altsvc'
 <!-- YAML
 added: v9.4.0