diff --git a/nixos/modules/hardware/cpu/amd-microcode.nix b/nixos/modules/hardware/cpu/amd-microcode.nix
index 9633478592e8..25ce70a5811d 100644
--- a/nixos/modules/hardware/cpu/amd-microcode.nix
+++ b/nixos/modules/hardware/cpu/amd-microcode.nix
@@ -16,7 +16,7 @@
   ###### implementation
   config = lib.mkIf config.hardware.cpu.amd.updateMicrocode {
     # Microcode updates must be the first item prepended in the initrd
-    boot.initrd.prepend = lib.mkOrder 1 [ "${pkgs.microcodeAmd}/amd-ucode.img" ];
+    boot.initrd.prepend = lib.mkOrder 1 [ "${pkgs.microcode-amd}/amd-ucode.img" ];
   };
 
 }