diff --git a/.mailmap b/.mailmap
index d28b28f6f6..43edb3c8e9 100644
--- a/.mailmap
+++ b/.mailmap
@@ -43,3 +43,6 @@ Liming Gao <liming.gao@intel.com> <lgao4@Edk2>
 Liming Gao <liming.gao@intel.com> <liming.gao@intel.com>
 Maciej Rabeda <maciej.rabeda@intel.com>
 Marc-André Lureau <marcandre.lureau@redhat.com> <marcandre.lureau@redhat.com>
+Marvin Häuser <Marvin.Haeuser@outlook.com>
+Marvin Häuser <Marvin.Haeuser@outlook.com> edk2-devel <edk2-devel-bounces@lists.01.org>
+Marvin Häuser <mhaeuser@outlook.de>