diff --git a/.mailmap b/.mailmap
index 8701b1919..8f11a1c49 100644
--- a/.mailmap
+++ b/.mailmap
@@ -1,5 +1,6 @@
-Shawn Pearce <spearce@spearce.org>	Shawn O. Pearce <sop@google.com>
-Shawn Pearce <spearce@spearce.org>	Shawn Pearce <sop@google.com>
-Shawn Pearce <spearce@spearce.org>	Shawn O. Pearce <spearce@spearce.org>
-Saša Živkov <sasa.zivkov@sap.com>	Sasa Zivkov <sasa.zivkov@sap.com>
-Saša Živkov <sasa.zivkov@sap.com>	Saša Živkov <zivkov@gmail.com>
+Roberto Tyley <roberto.tyley@guardian.co.uk> roberto <roberto.tyley@guardian.co.uk>
+Saša Živkov <sasa.zivkov@sap.com>            Sasa Zivkov <sasa.zivkov@sap.com>
+Saša Živkov <sasa.zivkov@sap.com>            Saša Živkov <zivkov@gmail.com>
+Shawn Pearce <spearce@spearce.org>           Shawn O. Pearce <sop@google.com>
+Shawn Pearce <spearce@spearce.org>           Shawn Pearce <sop@google.com>
+Shawn Pearce <spearce@spearce.org>           Shawn O. Pearce <spearce@spearce.org>