diff --git a/configs/Makefile b/configs/Makefile
index 008aea377..7163a4b6d 100755
--- a/configs/Makefile
+++ b/configs/Makefile
@@ -3,7 +3,7 @@ NVT_CFG_DTS="nvt-evb"
 #C_DEFINE_EXT = -DBIN_NAME='"$(BIN_NAME)"' \
 #		-DEMBMEM='"$(EMBMEM)"'
 DTC_VER=$(shell ver=`dtc -v | awk -F' ' '{print $$NF}' | awk -F'-' '{print $$(NF-1)}'`; echo "$$ver" | sed 's/[^a-zA-Z0-9]//g')
-DTC_CFLAGS=$(shell echo "-W no-unit_address_format -W no-unit_address_vs_reg")
+DTC_CFLAGS=$(shell echo "-W no-unit_address_format -W no-unit_address_vs_reg -W no-unique_unit_address")
 
 define gen_model_cfg_link
 	MODEL=`echo $(NVT_PRJCFG_MODEL_CFG) | awk -F'/' '{print $$(NF-1)}'`;\