diff --git a/profiles/arch/arm64/package.use.mask b/profiles/arch/arm64/package.use.mask
index 0a8f3c2a6b873..3fb27fc75f3ad 100644
--- a/profiles/arch/arm64/package.use.mask
+++ b/profiles/arch/arm64/package.use.mask
@@ -1,6 +1,10 @@
 # Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
+# Michał Górny <mgorny@gentoo.org> (23 Jan 2018)
+# Requires mail-client/thunderbird* that is not keyworded here.
+app-misc/tracker thunderbird
+
 # Michał Górny <mgorny@gentoo.org> (23 Jan 2018)
 # Requires app-accessibility/brltty that is not keyworded here.
 app-emulation/qemu accessibility