diff --git a/CMakeLists.txt b/CMakeLists.txt
index c988400..b4be6f1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -51,8 +51,8 @@ target_link_libraries(camera_to_rtsp
 # 运行时把 config.json 复制到 bin/ 目录
 add_custom_command(
     TARGET camera_to_rtsp POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:camera_to_rtsp>
     COMMAND ${CMAKE_COMMAND} -E copy_if_different
         ${CMAKE_SOURCE_DIR}/config.json
         $<TARGET_FILE_DIR:camera_to_rtsp>/config.json.default
 )
-