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-rw-r--r--nixos/modules/virtualisation/docker.nix4
1 files changed, 2 insertions, 2 deletions
diff --git a/nixos/modules/virtualisation/docker.nix b/nixos/modules/virtualisation/docker.nix
index 66e20df8d257..66c94f30088f 100644
--- a/nixos/modules/virtualisation/docker.nix
+++ b/nixos/modules/virtualisation/docker.nix
@@ -142,9 +142,9 @@ in
       dates = mkOption {
         default = "weekly";
         type = types.str;
-        description = ''
+        description = lib.mdDoc ''
           Specification (in the format described by
-          <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry>) of the time at
+          {manpage}`systemd.time(7)`) of the time at
           which the prune will occur.
         '';
       };