diff --git a/.mailmap b/.mailmap
index 3dd2cc2ef416..35acc92a2273 100644
--- a/.mailmap
+++ b/.mailmap
@@ -168,6 +168,7 @@ Ben Tilly <ben_tilly@operamail.com> <ben_tilly@hotmail.com>
 Ben Tilly <ben_tilly@operamail.com> <btilly@gmail.com>
 Ben Tilly <ben_tilly@operamail.com> Benjamin J. Tilly <unknown>
 Benjamin Holzman <bah@ecnvantage.com> <bholzman@longitude.com>
+Bernard Quatermass <bernard@quatermass.co.uk> Bernard Quatermass <toolsmith@quatermass.co.uk>
 Bharanee Rathna <unknown> bharanee rathna <unknown>
 Bilbo <bilbo@ua.fm> bilbo@ua.fm <bilbo@ua.fm>
 Billy Constantine <wdconsta@cs.adelaide.edu.au> wdconsta <wdconsta@cs.adelaide.edu.au>