diff --git a/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
index b291d38da671..92a859fe94ed 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
@@ -919,7 +919,7 @@
     };
 
     extraConfigFiles = [
-      /run/keys/matrix-synapse/secrets.yaml
+      "/run/keys/matrix-synapse/secrets.yaml"
     ];
   };
 }
@@ -927,7 +927,9 @@
         <para>
           The secrets in your original config should be migrated into a
           YAML file that is included via
-          <literal>extraConfigFiles</literal>.
+          <literal>extraConfigFiles</literal>. The filename must be
+          quoted to prevent nix from copying it to the (world readable)
+          store.
         </para>
         <para>
           Additionally a few option defaults have been synced up with
diff --git a/nixos/doc/manual/release-notes/rl-2205.section.md b/nixos/doc/manual/release-notes/rl-2205.section.md
index 4f4643e505bc..19695a0bceab 100644
--- a/nixos/doc/manual/release-notes/rl-2205.section.md
+++ b/nixos/doc/manual/release-notes/rl-2205.section.md
@@ -368,13 +368,13 @@ In addition to numerous new and upgraded packages, this release has the followin
       };
 
       extraConfigFiles = [
-        /run/keys/matrix-synapse/secrets.yaml
+        "/run/keys/matrix-synapse/secrets.yaml"
       ];
     };
   }
   ```
 
-  The secrets in your original config should be migrated into a YAML file that is included via `extraConfigFiles`.
+  The secrets in your original config should be migrated into a YAML file that is included via `extraConfigFiles`. The filename must be quoted to prevent nix from copying it to the (world readable) store.
 
   Additionally a few option defaults have been synced up with upstream default values, for example the `max_upload_size` grew from `10M` to `50M`. For the same reason, the default
   `media_store_path` was changed from `${dataDir}/media` to `${dataDir}/media_store` if `system.stateVersion` is at least `22.05`. Files will need to be manually moved to the new