diff --git a/external.mk b/external.mk
index ab860c0..70028c7 100644
--- a/external.mk
+++ b/external.mk
@@ -58,21 +58,9 @@ $(HOST_DIR)/bin/grub-editenv $(BINARIES_DIR)/efi-part/EFI/BOOT/grubenv set \
 endef
 GRUB2_INSTALL_IMAGES_CMDS += $(AIMEEOS_GRUB2_INSTALL_IMAGES_CMDS)
 
-ifneq ($(BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM),)
-AIMEEOS_KERNEL_FILENAME = $(BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM)
-else ifeq ($(BR2_LINUX_KERNEL_IMAGE),y)
-AIMEEOS_KERNEL_FILENAME = Image
-else ifeq ($(BR2_LINUX_KERNEL_IMAGEZ),y)
-AIMEEOS_KERNEL_FILENAME = zImage
-else ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
-AIMEEOS_KERNEL_FILENAME = vmlinux
-else
-$(error "Must define a Linux kernel target")
-endif
-
 # Generate the grub.cfg stub for the kernel embedded in rootfs.squashfs
 define AIMEEOS_GEN_GRUB_CFG
-$(BR2_EXTERNAL_AIMEEOS_PATH)/boot/grub2/gen-grub-cfg.sh $(AIMEEOS_KERNEL_FILENAME)
+$(BR2_EXTERNAL_AIMEEOS_PATH)/boot/grub2/gen-grub-cfg.sh $(LINUX_IMAGE_NAME)
 endef
 LINUX_TARGET_FINALIZE_HOOKS += AIMEEOS_GEN_GRUB_CFG