diff --git a/nixos/modules/system/boot/kernel.nix b/nixos/modules/system/boot/kernel.nix
index a46331ccd431..b0ac857feb4b 100644
--- a/nixos/modules/system/boot/kernel.nix
+++ b/nixos/modules/system/boot/kernel.nix
@@ -81,6 +81,13 @@ in
             extraStructuredConfig.FOO = lib.kernel.yes;
             features.foo = true;
           }
+          {
+            name = "foo-ml-mbox";
+            patch = (fetchurl {
+              url = "https://lore.kernel.org/lkml/19700205182810.58382-1-email@domain/t.mbox.gz";
+              hash = "sha256-...";
+            });
+          }
         ]
       '';
       description = lib.mdDoc ''