diff --git a/preface.asciidoc b/preface.asciidoc
index 38caa4d6..4fdca6ba 100644
--- a/preface.asciidoc
+++ b/preface.asciidoc
@@ -173,6 +173,7 @@ Many contributors offered comments, corrections, and additions to the early-rele
 * James Addison (jayaddison)
 * Jameson Lopp (jlopp)
 * Jason Bisterfeldt (jbisterfeldt)
+* Javier Rojas (fjrojasgarcia)
 * JerJohn15
 * Joe Bauers (joebauers)
 * joflynn