diff --git a/lambda/configuration.nix b/lambda/configuration.nix
index 1b09ba0..dab2277 100644
--- a/lambda/configuration.nix
+++ b/lambda/configuration.nix
@@ -54,10 +54,7 @@
     device = "nodev";
     efiSupport = true;
     enableCryptodisk = true;
-    theme = "/etc/grub-themes/sayonara";
-  };
-  environment.etc = {
-    "grub-themes/sayonara".source = ../shared/sayonara;
+    theme = ../shared/sayonara;
   };
 
   boot.loader.efi.efiSysMountPoint = "/boot/efi";