diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index 6c8ae502731ee..f8ad1f8929629 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -69,6 +69,7 @@ let
           "pc"
         ],
       extraMeta ? { },
+      extraPassthru ? { },
 
       isZen ? false,
       isLibre ? false,
@@ -299,6 +300,7 @@ let
 
         passthru =
           previousAttrs.passthru or { }
+          // extraPassthru
           // basicArgs
           // {
             features = kernelFeatures;
diff --git a/pkgs/os-specific/linux/kernel/linux-libre.nix b/pkgs/os-specific/linux/kernel/linux-libre.nix
index baec656fcae83..7f9a48adb1b7b 100644
--- a/pkgs/os-specific/linux/kernel/linux-libre.nix
+++ b/pkgs/os-specific/linux/kernel/linux-libre.nix
@@ -43,7 +43,7 @@ linux.override {
       '';
     };
 
-    passthru.updateScript = ./update-libre.sh;
+    extraPassthru.updateScript = ./update-libre.sh;
 
     maintainers = with lib.maintainers; [ qyliss ];
   };
diff --git a/pkgs/os-specific/linux/kernel/zen-kernels.nix b/pkgs/os-specific/linux/kernel/zen-kernels.nix
index 79d056d2cf918..300b77082ef20 100644
--- a/pkgs/os-specific/linux/kernel/zen-kernels.nix
+++ b/pkgs/os-specific/linux/kernel/zen-kernels.nix
@@ -145,7 +145,7 @@ let
             UCLAMP_TASK_GROUP = mkKernelOverride (option no);
           };
 
-        passthru.updateScript = [
+        extraPassthru.updateScript = [
           ./update-zen.py
           (if isLqx then "lqx" else "zen")
         ];