diff --git a/BoardConfig.mk b/BoardConfig.mk
index a009c06..d098141 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -34,6 +34,9 @@ BOARD_RAMDISK_OFFSET := 0x01000000
 BOARD_KERNEL_IMAGE_NAME := Image.gz-dtb
 TARGET_PREBUILT_KERNEL := device/lenovo/kunlun2/prebuilt/Image.gz-dtb
 
+# APEX image
+DEXPREOPT_GENERATE_APEX_IMAGE := true
+
 # Audio
 USE_CUSTOM_AUDIO_POLICY := 1
 USE_XML_AUDIO_POLICY_CONF := 1
diff --git a/device.mk b/device.mk
index 0121084..aa8b653 100644
--- a/device.mk
+++ b/device.mk
@@ -6,6 +6,9 @@ $(call inherit-product, $(SRC_TARGET_DIR)/product/full_base_telephony.mk)
 # Get non-open-source specific aspects
 $(call inherit-product-if-exists, vendor/lenovo/kunlun2/kunlun2-vendor.mk)
 
+# Enable updating of APEXes
+$(call inherit-product, $(SRC_TARGET_DIR)/product/updatable_apex.mk)
+
 # VNDK
 PRODUCT_TARGET_VNDK_VERSION := 29