diff --git a/nixos/modules/services/matrix/dendrite.nix b/nixos/modules/services/matrix/dendrite.nix
index 5152dfadf2e5..fdd91d776254 100644
--- a/nixos/modules/services/matrix/dendrite.nix
+++ b/nixos/modules/services/matrix/dendrite.nix
@@ -258,7 +258,7 @@ in
       default = { };
       description = ''
         Configuration for dendrite, see:
-        <https://github.com/matrix-org/dendrite/blob/master/dendrite-config.yaml>
+        <https://github.com/matrix-org/dendrite/blob/main/dendrite-sample.yaml>
         for available options with which to populate settings.
       '';
     };