diff --git a/Maintainers.txt b/Maintainers.txt
index b3aef0bb13..7772926b2f 100644
--- a/Maintainers.txt
+++ b/Maintainers.txt
@@ -81,6 +81,7 @@ W: https://github.com/tianocore/tianocore.github.io/wiki/ArmVirtPkg
 M: Laszlo Ersek <lersek@redhat.com>
 M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
 R: Julien Grall <julien.grall@arm.com>
+   (Xen modules)
 
 BaseTools
 W: https://github.com/tianocore/tianocore.github.io/wiki/BaseTools
@@ -217,7 +218,9 @@ M: Jordan Justen <jordan.l.justen@intel.com>
 M: Laszlo Ersek <lersek@redhat.com>
 M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
 R: Anthony Perard <anthony.perard@citrix.com>
+   (Xen modules)
 R: Julien Grall <julien.grall@arm.com>
+   (Xen modules)
 R: Marc-André Lureau <marcandre.lureau@redhat.com>
    (TPM2 modules)
 R: Stefan Berger <stefanb@linux.ibm.com>