diff --git a/nixos/modules/misc/version.nix b/nixos/modules/misc/version.nix
index c576cf4cb925..c9b374b6d7b1 100644
--- a/nixos/modules/misc/version.nix
+++ b/nixos/modules/misc/version.nix
@@ -95,6 +95,7 @@ in
         PRETTY_NAME="NixOS ${cfg.version} (${cfg.codeName})"
         LOGO="nix-snowflake"
         HOME_URL="https://nixos.org/"
+        DOCUMENTATION_URL="https://nixos.org/nixos/manual/index.html"
         SUPPORT_URL="https://nixos.org/nixos/support.html"
         BUG_REPORT_URL="https://github.com/NixOS/nixpkgs/issues"
       '';