diff --git a/.mailmap b/.mailmap
index 4ef723e5146..68161699486 100644
--- a/.mailmap
+++ b/.mailmap
@@ -396,6 +396,8 @@ Nathaniel Herman <nherman@post.harvard.edu> Nathaniel Herman <nherman@college.ha
 Neil Pankey <npankey@gmail.com> <neil@wire.im>
 Ngo Iok Ui (Wu Yu Wei) <wusyong9104@gmail.com>
 Nicholas Baron <nicholas.baron.ten@gmail.com>
+Nicholas Nethercote <n.nethercote@gmail.com> <nnethercote@apple.com>
+Nicholas Nethercote <n.nethercote@gmail.com> <nnethercote@mozilla.com>
 Nick Platt <platt.nicholas@gmail.com>
 Niclas Schwarzlose <15schnic@gmail.com>
 Nicolas Abram <abramlujan@gmail.com>