diff --git a/deploy/iso/minikube-iso/configs/minikube_aarch64_defconfig b/deploy/iso/minikube-iso/configs/minikube_aarch64_defconfig
index 534ddcb6b4..302a27265e 100644
--- a/deploy/iso/minikube-iso/configs/minikube_aarch64_defconfig
+++ b/deploy/iso/minikube-iso/configs/minikube_aarch64_defconfig
@@ -17,8 +17,8 @@ BR2_PACKAGE_HOST_MTOOLS=y
 # Bootloader
 BR2_TARGET_GRUB2=y
 BR2_TARGET_GRUB2_ARM64_EFI=y
-BR2_TARGET_GRUB2_BUILTIN_CONFIG="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/aarch64/grub-stub.cfg"
-BR2_TARGET_GRUB2_BUILTIN_MODULES="boot linux ext2 fat squash4 part_msdos part_gpt normal efi_gop udf iso9660 search search_fs_file search_fs_uuid search_label"
+BR2_TARGET_GRUB2_BUILTIN_CONFIG_EFI="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/aarch64/grub-stub.cfg"
+BR2_TARGET_GRUB2_BUILTIN_MODULES_EFI="boot linux ext2 fat squash4 part_msdos part_gpt normal efi_gop udf iso9660 search search_fs_file search_fs_uuid search_label"
 
 # Filesystem / image
 BR2_TARGET_ROOTFS_CPIO=y
diff --git a/deploy/iso/minikube-iso/configs/minikube_x86_64_defconfig b/deploy/iso/minikube-iso/configs/minikube_x86_64_defconfig
index f815905301..75fc9309b5 100644
--- a/deploy/iso/minikube-iso/configs/minikube_x86_64_defconfig
+++ b/deploy/iso/minikube-iso/configs/minikube_x86_64_defconfig
@@ -18,8 +18,8 @@ BR2_PACKAGE_HOST_MTOOLS=y
 # To turn the x86_64 ISO from BIOS to EFI, uncomment the following 7 lines and comment out the 3 lines beneath it.
 #BR2_TARGET_GRUB2=y
 #BR2_TARGET_GRUB2_X86_64_EFI=y
-#BR2_TARGET_GRUB2_BUILTIN_CONFIG="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/x86_64/grub-stub.cfg"
-#BR2_TARGET_GRUB2_BUILTIN_MODULES="boot linux ext2 fat squash4 part_msdos part_gpt normal efi_gop udf iso9660 search search_fs_file search_fs_uuid search_label"
+#BR2_TARGET_GRUB2_BUILTIN_CONFIG_EFI="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/x86_64/grub-stub.cfg"
+#BR2_TARGET_GRUB2_BUILTIN_MODULES_EFI="boot linux ext2 fat squash4 part_msdos part_gpt normal efi_gop udf iso9660 search search_fs_file search_fs_uuid search_label"
 #BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/x86_64/post-build.sh"
 #BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/x86_64/post-image.sh"
 #BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_EXTERNAL_MINIKUBE_PATH)/board/minikube/x86_64/genimage.cfg"