diff --git a/DuiLib/CMakeLists.txt b/DuiLib/CMakeLists.txt
index 835d430..6a4da5a 100644
--- a/DuiLib/CMakeLists.txt
+++ b/DuiLib/CMakeLists.txt
@@ -20,6 +20,3 @@ add_library(duilib SHARED ${Control_src} ${Core_src} ${Layout_src} ${Utils_src}
 add_definitions(-DUILIB_EXPORTS)
 target_link_libraries(duilib comctl32)
 set_target_properties(duilib PROPERTIES OUTPUT_NAME "duilib")
-add_custom_command(TARGET duilib POST_BUILD
-  COMMAND ${CMAKE_COMMAND} -E copy_if_different
-  ${PROJECT_BINARY_DIR}/lib/duilib.dll ${PROJECT_SOURCE_DIR}/bin/duilib.dll)
