diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7eb9f54..d81b87d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,7 +50,5 @@ 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' '$<TARGET_FILE_DIR:camera_to_rtsp>/config.json'; else echo 'config.json exists, skip copy'; fi"
+    COMMAND /bin/bash -c "if [ ! -f \"$<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"
 )
-
-