diff --git a/preface.asciidoc b/preface.asciidoc
index e268db36..5dfd2e7a 100644
--- a/preface.asciidoc
+++ b/preface.asciidoc
@@ -206,7 +206,7 @@ Many contributors offered comments, corrections, and additions to the early-rele
 * Marzig (marzig76)
 * Maximilian Reichel (phramz)
 * Michalis Kargakis (kargakis)
-* michaelcippolito
+* Michael C. Ippolito (michaelcippolito)
 * Mihail Russu (MihailRussu)
 * Minh T. Nguyen (enderminh)
 * Nagaraj Hubli (nagarajhubli)