diff --git a/cmake/A311D.cmake b/cmake/A311D.cmake
index 8292ef6..77274d5 100644
--- a/cmake/A311D.cmake
+++ b/cmake/A311D.cmake
@@ -1,13 +1,13 @@
 set(PKG_NAME "OVXDRV")
 message("Downloading A311D toolchain ...")
 file(DOWNLOAD  "https://cnbj1.fds.api.xiaomi.com/mace/third-party/gcc-linaro/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz"
-    ${PROJECT_SOURCE_DIR}/build/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
+    ${PROJECT_BINARY_DIR}/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
     EXPECTED_MD5 "6ec789d642584a01e240ab3366599dbb"
     SHOW_PROGRESS)
 execute_process(COMMAND
-    tar xf ${PROJECT_SOURCE_DIR}/build/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz)
+    tar xf ${PROJECT_BINARY_DIR}/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz)
 
-set(TOOLCHAIN_DIR  ${PROJECT_SOURCE_DIR}/build/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu)
+set(TOOLCHAIN_DIR  ${PROJECT_BINARY_DIR}/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu)
 set(CMAKE_C_COMPILER ${TOOLCHAIN_DIR}/bin/aarch64-linux-gnu-gcc)
 set(CMAKE_CXX_COMPILER ${TOOLCHAIN_DIR}/bin/aarch64-linux-gnu-g++)
 set(CMAKE_AR ${TOOLCHAIN_DIR}/bin/aarch64-linux-gnu-gcc-ar)
@@ -16,25 +16,25 @@ set(CMAKE_LD ${TOOLCHAIN_DIR}/bin/aarch64-linux-gnu-gcc-ld)
 
 message("Downloading A311D SDK ...")
 file(DOWNLOAD "https://github.com/VeriSilicon/TIM-VX/releases/download/v1.1.28/aarch64_A311D_D312513_A294074_R311680_T312233_O312045.tgz"
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045.tgz
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045.tgz
     EXPECTED_MD5 "26f4766c25a4776caf41b93e9b1c6af9"
     SHOW_PROGRESS)
 execute_process(COMMAND 
-    tar xf ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045.tgz)
+    tar xf ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045.tgz)
 
 set(OVXDRV_INCLUDE_DIRS)
 list(APPEND OVXDRV_INCLUDE_DIRS
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/include
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/include/CL)
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/include
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/include/CL)
 
 set(OVXDRV_LIBRARIES)
 list(APPEND OVXDRV_LIBRARIES
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libCLC.so
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libGAL.so
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libOpenVX.so
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libOpenVXU.so
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libVSC.so
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libArchModelSw.so
-    ${PROJECT_SOURCE_DIR}/build/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libNNArchPerf.so)
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libCLC.so
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libGAL.so
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libOpenVX.so
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libOpenVXU.so
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libVSC.so
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libArchModelSw.so
+    ${PROJECT_BINARY_DIR}/aarch64_A311D_D312513_A294074_R311680_T312233_O312045/lib/libNNArchPerf.so)
 
 mark_as_advanced(${OVXDRV_INCLUDE_DIRS} ${OVXDRV_LIBRARIES})
\ No newline at end of file