diff --git a/BoardConfig.mk b/BoardConfig.mk
index 1e7b66c..5b3a341 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -116,7 +116,8 @@ BOARD_MKBOOTIMG_ARGS += --header_version $(BOARD_BOOT_HEADER_VERSION)
 BOARD_RAMDISK_USE_LZ4 := true
 TARGET_KERNEL_ADDITIONAL_FLAGS := \
     DTC_EXT=$(shell pwd)/prebuilts/misc/linux-x86/dtc/dtc \
-    LLVM=1
+    LLVM=1 \
+    LLVM_IAS=1
 TARGET_KERNEL_SOURCE := kernel/oneplus/sm4350
 TARGET_KERNEL_CONFIG := vendor/holi-qgki_defconfig