diff --git a/core/MAINTAINERS.txt b/core/MAINTAINERS.txt
index 0739fb0929e..46a4c4b4f42 100644
--- a/core/MAINTAINERS.txt
+++ b/core/MAINTAINERS.txt
@@ -480,6 +480,9 @@ PHPUnit Initiative
 - Klaus Purer 'klausi' https://www.drupal.org/u/klausi
 - Daniel Wehner 'dawehner' https://www.drupal.org/u/dawehner
 
+Layout Initiative
+- Tim Plunkett 'tim.plunkett' https://www.drupal.org/u/tim.plunkett
+
 Provisional membership: None at this time.