diff --git a/machines/modules/host_builder.nix b/machines/modules/host_builder.nix
index bc822fd..e64842a 100644
--- a/machines/modules/host_builder.nix
+++ b/machines/modules/host_builder.nix
@@ -33,6 +33,7 @@ rec {
               trusted-public-keys = [
                 # TODO: add cache.malobeo.org key after creation
                 "cache.dynamicdiscord.de:DKueZicqi2NhJJXz9MYgUbiyobMs10fTyHCgAUibRP4="
+                "cache.malobeo.org:+eSv8F63uj94A0fvmdyPcDDH0qI3CYR91fsbA/eLFGw="
               ];
               trusted-users = [ "root" "@wheel" ];
             };