diff --git a/flake.nix b/flake.nix
index b0bd772..417885d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,7 +11,11 @@
       let
         pkgs = nixpkgs.legacyPackages.${system};
         kernel = pkgs.linux_latest;
-        ethercat = etherlab.packages.${system}.ethercat.override { inherit kernel; } ;
+        ethercat = if system == "aarch64-linux" then
+          etherlab.ethercat.override {
+            kernel = pkgs.linuxKernel.kernels.linux_rpi4;
+            master_device0 = "end0";
+          } else etherlab.packages.${system}.ethercat.override { inherit kernel; };
       in
       {
         packages.default = pkgs.callPackage ./default.nix { inherit ethercat; };