diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 22f42cf5f382..c0225a54b3e6 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -14840,10 +14840,12 @@
     name = "Stijn DW";
   };
   StillerHarpo = {
-    email = "florianengel39@gmail.com";
+    email = "engelflorian@posteo.de";
     github = "StillerHarpo";
     githubId = 25526706;
     name = "Florian Engel";
+    keys = [{ fingerprint = "4E2D9B26940E0DABF376B7AF76762421D45837DE"; }];
+    matrix = "@qe7ftcyrpg:matrix.org";
   };
   stites = {
     email = "sam@stites.io";