diff --git a/preface.asciidoc b/preface.asciidoc
index bd72d38d..2370003e 100644
--- a/preface.asciidoc
+++ b/preface.asciidoc
@@ -290,6 +290,7 @@ The following is a list of notable GitHub contributors:
 * wjx
 * Wojciech Langiewicz (wlk)
 * Yancy Ribbens (yancyribbens)
+* yjjnls
 * Yoshimasa Tanabe (emag)
 * yuntai
 * yurigeorgiev4