diff --git a/.mailmap b/.mailmap
index 8b9f5a7020..589d3dedc3 100644
--- a/.mailmap
+++ b/.mailmap
@@ -28,6 +28,8 @@ Hartwig Wiesmann	<git@skywind.eu>
 			<git@skywind.eu>			<hartwig.wiesmann@wanadoo.nl>
 Kinaou Hervé							<kinaouherve@gmail.com>
 Kolya Kosenko		<kolya.kosenko@gmail.com>		<kosenko@trac.wxwidgets.org>
+Konstantin S. Matveyev	<kos@eligovision.ru>			<konstantin.matveyev@eligovision.ru>
+Konstantin S. Matveyev	<kos@eligovision.ru>			valid-ptr	<kos@eligovision.ru>
 Lauri Nurmi		<lanurmi@iki.fi>			<lauri@ksenos.fi>
 Lynn C. Rees							<lcrees@gmail.com>
 Maarten Bent							<MaartenBent@users.noreply.github.com>