diff --git a/.mailmap b/.mailmap
index d98edd258ad1..b08937048297 100644
--- a/.mailmap
+++ b/.mailmap
@@ -39,7 +39,6 @@ Nicola Giuliani <ngiuliani@sissa.it> <nicolagiuliani@dhcp-129-199.sissa.it>
 Anne Glerum <a.c.glerum@uu.nl>
 Krishnakumar Gopalakrishnan <krishna.kumar@ucl.ac.uk> <krishnakumarg1984@users.noreply.github.com>
 Krishnakumar Gopalakrishnan <krishna.kumar@ucl.ac.uk> <krishnak@vt.edu>
-Alexander Grayver <agrayver@erdw.ethz.ch>
 Alexander Grayver <agrayver@erdw.ethz.ch> <agrayver@agrayver-VirtualBox.(none)>
 Joshua Hanophy <josh.hanophy@gmail.com>
 Mike Harmon <mdh266@gmail.com>