diff --git a/sdk/build/build_ta.sh b/sdk/build/build_ta.sh
index d74b574..f3a008d 100755
--- a/sdk/build/build_ta.sh
+++ b/sdk/build/build_ta.sh
@@ -15,7 +15,7 @@ set -e
 
 export SOURCE_PATH=$(dirname $0)
 export ABS_SOURCE_PATH=$(cd ${SOURCE_PATH};pwd)
-export TEE_BUILD_PATH=${ABS_SOURCE_PATH}/../../../../
+export TEE_BUILD_PATH=${ABS_SOURCE_PATH}/../../../
 SIGNTOOL_DIR=${TEE_BUILD_PATH}/build/tools
 CUR_DIR=$(pwd)
 
diff --git a/sdk/src/TA/helloworld_demo/Makefile b/sdk/src/TA/helloworld_demo/Makefile
index 9983845..219499a 100644
--- a/sdk/src/TA/helloworld_demo/Makefile
+++ b/sdk/src/TA/helloworld_demo/Makefile
@@ -17,7 +17,7 @@ TARGET_IS_ARM64 = y
 # If no API_LEVEL is specified, API of GP 1.1.1 will be taken
 CFLAGS += -DAPI_LEVEL=2
 
-include ../../../../build/mk/common.mk
+include ../../../build/mk/common.mk
 
 SRC += $(wildcard ./*.c)
 
diff --git a/sdk/src/TA/helloworld_demo/build_ta.sh b/sdk/src/TA/helloworld_demo/build_ta.sh
index 4b3106e..30c45e5 120000
--- a/sdk/src/TA/helloworld_demo/build_ta.sh
+++ b/sdk/src/TA/helloworld_demo/build_ta.sh
@@ -1 +1 @@
-../../../../build/build_ta.sh
\ No newline at end of file
+../../../build/build_ta.sh
\ No newline at end of file