diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 6719f814fbd5..e46561539d29 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -30314,9 +30314,13 @@
   };
   yarn = {
     name = "yarncat";
+    email = "nix@yarncat.moe";
     github = "yaaaarn";
     githubId = 30006414;
-    email = "nix@yarncat.moe";
+    matrix = "@y:mx.yarncat.moe";
+    keys = [
+      { fingerprint = "6611 1CEA 8D78 A13E C6D6 FD13 7900 447A E348 FF4D"; }
+    ];
   };
   yarny = {
     github = "Yarny0";