diff --git a/linux/blitzar/configuration.nix b/linux/blitzar/configuration.nix
index 5f42f48..a4398ea 100644
--- a/linux/blitzar/configuration.nix
+++ b/linux/blitzar/configuration.nix
@@ -8,9 +8,11 @@
 
   # Configure boot loader
   boot.loader = {
+    efi.canTouchEfiVariables = true;
     grub = let yorha = pkgs.yorha-grub-theme; in {
       enable = true;
       device = "nodev";
+      efiSupport = true;
       splashImage = "${yorha}/background.png";
       theme = yorha;
     };
diff --git a/linux/comet/configuration.nix b/linux/comet/configuration.nix
index 89a9cce..58070cb 100644
--- a/linux/comet/configuration.nix
+++ b/linux/comet/configuration.nix
@@ -8,9 +8,11 @@
 
   # Configure boot loader
   boot.loader = {
+    efi.canTouchEfiVariables = true;
     grub = let yorha = pkgs.yorha-grub-theme; in {
       enable = true;
       device = "nodev";
+      efiSupport = true;
       splashImage = "${yorha}/background.png";
       theme = yorha;
     };
diff --git a/linux/nebula/configuration.nix b/linux/nebula/configuration.nix
index 0c83e1b..a536d0d 100644
--- a/linux/nebula/configuration.nix
+++ b/linux/nebula/configuration.nix
@@ -8,9 +8,11 @@
 
   # Configure boot loader
   boot.loader = {
+    efi.canTouchEfiVariables = true;
     grub = let yorha = pkgs.yorha-grub-theme; in {
       enable = true;
       device = "nodev";
+      efiSupport = true;
       splashImage = "${yorha}/background.png";
       theme = yorha;
     };