diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 1484e0156d56..df80e577b2b0 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -741,6 +741,7 @@
   angustrau = {
     name = "Angus Trau";
     email = "nix@angus.ws";
+    matrix = "@angustrau:matrix.org";
     github = "angustrau";
     githubId = 13267947;
   };
@@ -3115,6 +3116,7 @@
   };
   earvstedt = {
     email = "erik.arvstedt@gmail.com";
+    matrix = "@erikarvstedt:matrix.org";
     github = "erikarvstedt";
     githubId = 36110478;
     name = "Erik Arvstedt";
@@ -4816,6 +4818,7 @@
   };
   ilkecan = {
     email = "ilkecan@protonmail.com";
+    matrix = "@ilkecan:matrix.org";
     github = "ilkecan";
     githubId = 40234257;
     name = "ilkecan bozdogan";
@@ -8782,6 +8785,7 @@
   };
   peterhoeg = {
     email = "peter@hoeg.com";
+    matrix = "@peter:hoeg.com";
     github = "peterhoeg";
     githubId = 722550;
     name = "Peter Hoeg";
@@ -9652,6 +9656,7 @@
   };
   rnhmjoj = {
     email = "rnhmjoj@inventati.org";
+    matrix = "@rnhmjoj:maxwell.ydns.eu";
     github = "rnhmjoj";
     githubId = 2817565;
     name = "Michele Guerini Rocco";
@@ -9753,6 +9758,7 @@
   };
   roosemberth = {
     email = "roosembert.palacios+nixpkgs@posteo.ch";
+    matrix = "@roosemberth:orbstheorem.ch";
     github = "roosemberth";
     githubId = 3621083;
     name = "Roosembert (Roosemberth) Palacios";
@@ -9893,6 +9899,7 @@
   };
   ryantm = {
     email = "ryan@ryantm.com";
+    matrix = "@ryantm:matrix.org";
     github = "ryantm";
     githubId = 4804;
     name = "Ryan Mulligan";