diff --git a/device-ripcurrent.mk b/device-ripcurrent.mk
index 40a9900..9177a39 100644
--- a/device-ripcurrent.mk
+++ b/device-ripcurrent.mk
@@ -18,8 +18,8 @@
 $(call inherit-product-if-exists, vendor/google/products/sources_pixel.mk)
 
 TARGET_LINUX_KERNEL_VERSION := $(RELEASE_KERNEL_RIPCURRENT_VERSION)
-TARGET_KERNEL_DIR := $(RELEASE_KERNEL_RIPCURRENT_DIR)
-TARGET_BOARD_KERNEL_HEADERS := $(RELEASE_KERNEL_RIPCURRENT_DIR)/kernel-headers
+TARGET_KERNEL_DIR ?= $(RELEASE_KERNEL_RIPCURRENT_DIR)
+TARGET_BOARD_KERNEL_HEADERS ?= $(RELEASE_KERNEL_RIPCURRENT_DIR)/kernel-headers
 
 ifneq (,$(filter userdebug eng, $(TARGET_BUILD_VARIANT)))
     USE_UWBFIELDTESTQM := true