diff --git a/AndroidBoot.mk b/AndroidBoot.mk
index 33f6e91..85c917d 100644
--- a/AndroidBoot.mk
+++ b/AndroidBoot.mk
@@ -27,6 +27,14 @@
   VERIFIED_BOOT := VERIFIED_BOOT=0
 endif
 
+ifeq (1,$(filter 1,$(shell echo "$$(( $(PLATFORM_SDK_VERSION) >= 24 ))" )))
+  OSVERSION_IN_BOOTIMAGE := OSVERSION_IN_BOOTIMAGE=1
+  ENABLE_VB_ATTEST := ENABLE_VB_ATTEST=1
+else
+  OSVERSION_IN_BOOTIMAGE := OSVERSION_IN_BOOTIMAGE=0
+  ENABLE_VB_ATTEST := ENABLE_VB_ATTEST=0
+endif
+
 ifneq ($(TARGET_BUILD_VARIANT),user)
   DEVICE_STATUS := DEFAULT_UNLOCK=true
 endif
@@ -55,7 +63,7 @@
 # ELF binary for ABOOT
 TARGET_ABOOT_ELF := $(PRODUCT_OUT)/aboot.elf
 $(TARGET_ABOOT_ELF): ABOOT_CLEAN | $(ABOOT_OUT)
-	$(MAKE) -C bootable/bootloader/lk TOOLCHAIN_PREFIX=$(CROSS_COMPILE) BOOTLOADER_OUT=../../../$(ABOOT_OUT) $(BOOTLOADER_PLATFORM) $(EMMC_BOOT) $(SIGNED_KERNEL) $(VERIFIED_BOOT) $(DEVICE_STATUS) $(BUILD_VARIANT) $(BOARD_NAME)
+	$(MAKE) -C bootable/bootloader/lk TOOLCHAIN_PREFIX=$(CROSS_COMPILE) BOOTLOADER_OUT=../../../$(ABOOT_OUT) $(BOOTLOADER_PLATFORM) $(EMMC_BOOT) $(SIGNED_KERNEL) $(VERIFIED_BOOT) $(DEVICE_STATUS) $(BUILD_VARIANT) $(BOARD_NAME) $(ENABLE_VB_ATTEST) $(OSVERSION_IN_BOOTIMAGE)
 
 # NAND variant output
 TARGET_NAND_BOOTLOADER := $(PRODUCT_OUT)/appsboot.mbn
diff --git a/makefile b/makefile
index 542bfaf..277a714 100644
--- a/makefile
+++ b/makefile
@@ -105,6 +105,14 @@
   endif
 endif
 
+ifeq ($(OSVERSION_IN_BOOTIMAGE),1)
+ DEFINES += OSVERSION_IN_BOOTIMAGE=1
+endif
+
+ifeq ($(ENABLE_VB_ATTEST),1)
+ DEFINES += ENABLE_VB_ATTEST=1
+endif
+
 ifeq ($(USER_BUILD_VARIANT),true)
   DEFINES += USER_BUILD_VARIANT=1
 endif