diff --git a/.mailmap b/.mailmap
index 6f1d5fd4d0c13..d6b7ab51a48c6 100644
--- a/.mailmap
+++ b/.mailmap
@@ -113,6 +113,9 @@ Hanna Kruppe <hanna.kruppe@gmail.com> <robin.kruppe@gmail.com>
 Heather <heather@cynede.net> <Cynede@Gentoo.org>
 Heather <heather@cynede.net> <Heather@cynede.net>
 Herman J. Radtke III <herman@hermanradtke.com> Herman J. Radtke III <hermanradtke@gmail.com>
+Ian Jackson <ijackson@chiark.greenend.org.uk> <ian.jackson@citrix.com>
+Ian Jackson <ijackson@chiark.greenend.org.uk> <ijackson+github@slimy.greenend.org.uk>
+Ian Jackson <ijackson@chiark.greenend.org.uk> <iwj@xenproject.org>
 Ilyong Cho <ilyoan@gmail.com>
 inquisitivecrystal <22333129+inquisitivecrystal@users.noreply.github.com>
 Ivan Ivaschenko <defuz.net@gmail.com>