diff --git a/bsp/board/bl602dk/CMakeLists.txt b/bsp/board/bl602dk/CMakeLists.txt
index c1e0ab49..f0e65849 100644
--- a/bsp/board/bl602dk/CMakeLists.txt
+++ b/bsp/board/bl602dk/CMakeLists.txt
@@ -1,3 +1,5 @@
 sdk_add_include_directories(.)
 
+target_sources(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/board.c)
+
 sdk_set_linker_script(bl602_flash.ld)
\ No newline at end of file
diff --git a/bsp/board/bl616dk/CMakeLists.txt b/bsp/board/bl616dk/CMakeLists.txt
index cfca8e52..ba62bf90 100644
--- a/bsp/board/bl616dk/CMakeLists.txt
+++ b/bsp/board/bl616dk/CMakeLists.txt
@@ -1,5 +1,7 @@
 sdk_add_include_directories(.)
 
+target_sources(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/board.c)
+
 sdk_set_linker_script(bl616_flash.ld)
 
 if(CONFIG_PSRAM)
diff --git a/bsp/board/bl702dk/CMakeLists.txt b/bsp/board/bl702dk/CMakeLists.txt
index 6fa8c28e..bc4d5208 100644
--- a/bsp/board/bl702dk/CMakeLists.txt
+++ b/bsp/board/bl702dk/CMakeLists.txt
@@ -1,5 +1,7 @@
 sdk_add_include_directories(.)
 
+target_sources(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/board.c)
+
 sdk_set_linker_script(bl702_flash.ld)
 
 if(CONFIG_PSRAM)
diff --git a/bsp/board/bl808dk/CMakeLists.txt b/bsp/board/bl808dk/CMakeLists.txt
index 92c4fa38..21a01bde 100644
--- a/bsp/board/bl808dk/CMakeLists.txt
+++ b/bsp/board/bl808dk/CMakeLists.txt
@@ -1,5 +1,7 @@
 sdk_add_include_directories(.)
 
+target_sources(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/board.c)
+
 sdk_set_linker_script(bl808_flash_${CPU_ID}.ld)
 
 if(CONFIG_PSRAM)
diff --git a/cmake/bouffalo_sdk-config.cmake b/cmake/bouffalo_sdk-config.cmake
index 585b8f5f..fbcba76f 100644
--- a/cmake/bouffalo_sdk-config.cmake
+++ b/cmake/bouffalo_sdk-config.cmake
@@ -11,7 +11,7 @@ set(EXECUTABLE_OUTPUT_PATH ${build_dir})
 set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)
 
 add_library(sdk_intf_lib INTERFACE)
-add_library(app STATIC ${BL_SDK_BASE}/bsp/board/${BOARD}/board.c)
+add_library(app STATIC)
 target_link_libraries(app sdk_intf_lib)
 
 include(${BL_SDK_BASE}/cmake/toolchain.cmake)