diff --git a/preface.asciidoc b/preface.asciidoc
index f46e903..80870f1 100644
--- a/preface.asciidoc
+++ b/preface.asciidoc
@@ -182,8 +182,8 @@ Many contributors offered comments, corrections, and additions to the book as it
 Following is an alphabetically sorted list of all the GitHub contributors, including their GitHub IDs in parentheses:
 
 * Alpha Q. Smith (@alpha_github_id)
-* Omega X. Last (@omega_github_id)
 * Hatim Boufnichel (@boufni95)
+* Omega X. Last (@omega_github_id)
 
 Without the help offered by everyone listed above, this book would not have been possible. Your contributions demonstrate the power of open source and open culture, and we are eternally grateful for your help.