diff --git a/preface.asciidoc b/preface.asciidoc
index 11370838..8cc1e664 100644
--- a/preface.asciidoc
+++ b/preface.asciidoc
@@ -224,7 +224,7 @@ Following is a list of notable GitHub contributors, including their GitHub ID in
 * Lucas Betschart (lclc)
 * Magomed Aliev (30mb1)
 * Mai-Hsuan Chia (mhchia)
-* marcofalke
+* Marco Falke (MarcoFalke)
 * Marzig (marzig76)
 * Matt McGivney (mattmcgiv)
 * Maximilian Reichel (phramz)