diff --git a/hosts/by-name/servo/services/matrix/irc.nix b/hosts/by-name/servo/services/matrix/irc.nix
index fd7b447f..653404eb 100644
--- a/hosts/by-name/servo/services/matrix/irc.nix
+++ b/hosts/by-name/servo/services/matrix/irc.nix
@@ -133,6 +133,10 @@ in
           additionalAddresses = [ "irc2.myanonamouse.net" ];
           sasl = false;
         };
+        "irc.esper.net" = ircServer {
+          name = "esper";
+          sasl = false;
+        };
       };
     };
   };