diff --git a/CMakeLists.txt b/CMakeLists.txt
index d81b87d..c57ceb6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,5 +50,6 @@ 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 /bin/bash -c "if [ ! -f \"$<TARGET_FILE_DIR:camera_to_rtsp>/config.json\" ]; then cp \"${CMAKE_SOURCE_DIR}/config.json\" \"$<TARGET_FILE_DIR:camera_to_rtsp>/config.json\"; else echo 'config.json exists, skip copy'; fi"
+    COMMAND bash -c "if [ ! -f \"$<TARGET_FILE_DIR:camera_to_rtsp>/config.json\" ]; then cp \"${CMAKE_SOURCE_DIR}/config.json\" \"$<TARGET_FILE_DIR:camera_to_rtsp>/config.json\"; else echo config.json\ exists,\ skip\ copy; fi"
 )
+