diff --git a/build/mk/cloud/common.mk b/build/mk/cloud/common.mk
index 9a37b9b6dcf8b281716d73f30d46593c1c62227e..73fdd5b9f1256eb7899be2b0fc0d44b90901429d 100755
--- a/build/mk/cloud/common.mk
+++ b/build/mk/cloud/common.mk
@@ -6,7 +6,7 @@ LIBC=$(iTrustee_SDK_PATH)/thirdparty/open_source/musl
 LIBSECURE=$(iTrustee_SDK_PATH)/thirdparty/open_source/libboundscheck/
 
 # set compile parameters
-CFLAGS := -O -W -Wall
+CFLAGS += -O -W -Wall
 CFLAGS += -Werror
 CFLAGS += -fno-short-enums
 CFLAGS += -fno-omit-frame-pointer
diff --git a/test/TA/helloworld/cloud/Makefile b/test/TA/helloworld/cloud/Makefile
index 108fda6413e3eef1bcb80487db6e19893e3969b2..63b2fa5c0f6857e45e79dc9615d1737b3ff708cd 100755
--- a/test/TA/helloworld/cloud/Makefile
+++ b/test/TA/helloworld/cloud/Makefile
@@ -12,6 +12,7 @@ COBJS := $(SRC:%.c=%.o)
 TARGET = $(COBJS)
 
 sec_binary:combine
+	cp ../config.mk ./
 	cp ../manifest.txt ./
 	python3 -B ${SIGNTOOL_DIR}/signtool_v3.py ${CUR_DIR} ${CUR_DIR} --config ${SIGNTOOL_DIR}/cloud/config_cloud.ini