diff --git a/doc/api/stream.md b/doc/api/stream.md
index ff1b0c78fbcc29..f6e28c10228d22 100644
--- a/doc/api/stream.md
+++ b/doc/api/stream.md
@@ -2177,6 +2177,7 @@ readable buffer so there is nothing for a user to consume.
 [fs read streams]: fs.html#fs_class_fs_readstream
 [fs write streams]: fs.html#fs_class_fs_writestream
 [http-incoming-message]: http.html#http_class_http_incomingmessage
+[zlib]: zlib.html
 [stream-_flush]: #stream_transform_flush_callback
 [stream-_read]: #stream_readable_read_size_1
 [stream-_transform]: #stream_transform_transform_chunk_encoding_callback