diff --git a/CMakeLists.txt b/CMakeLists.txt
index d886277..fb40c12 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,9 @@ set(PROJECT ble_hid)
 cmake_minimum_required(VERSION 3.13)
 set(PICO_SDK_PATH /home/kenji/programming/pico/c/pico-sdk)
 set(PICO_PIO_USB_PATH /home/kenji/programming/pico/c/Pico-PIO-USB)
-set(PICO_BOARD pico_w)
+if (NOT DEFINED PICO_BOARD)
+	set(PICO_BOARD pico_w)
+endif()
 include (${PICO_SDK_PATH}/external/pico_sdk_import.cmake)
 project(${PROJECT} C CXX ASM)
 
@@ -45,5 +47,7 @@ target_link_libraries(${PROJECT} PRIVATE
 
 pico_btstack_make_gatt_header(ble_hid PRIVATE "${CMAKE_CURRENT_LIST_DIR}/ble_hid.gatt")
 
+set_target_properties(${PROJECT} PROPERTIES OUTPUT_NAME "${PROJECT}-${PICO_BOARD}")
+
 pico_add_extra_outputs(${PROJECT})