diff --git a/pkgs/os-specific/linux/kernel/xanmod-kernels.nix b/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
index 6786c02d6158..13a1cb4c4206 100644
--- a/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
+++ b/pkgs/os-specific/linux/kernel/xanmod-kernels.nix
@@ -3,17 +3,15 @@
 let
   ltsVariant = {
     version = "5.15.54";
-    suffix = "xanmod1";
     hash = "sha256-0Odo+ZrQok3MMPl/512F8kIQ31mGZH6e9FyVVpXrYf0=";
   };
 
   edgeVariant = {
     version = "5.18.11";
-    suffix = "xanmod1";
     hash = "sha256-UPLwaEWhBu1yriCUJu9L/B8yy+1zxnTQzHaKlT507UY=";
   };
 
-  xanmodKernelFor = { version, suffix, hash }: buildLinux (args // rec {
+  xanmodKernelFor = { version, suffix ? "xanmod1", hash }: buildLinux (args // rec {
     inherit version;
     modDirVersion = "${version}-${suffix}";