diff --git a/twain/twain/huagaods.cpp b/twain/twain/huagaods.cpp
index 816db60..fc5123b 100644
--- a/twain/twain/huagaods.cpp
+++ b/twain/twain/huagaods.cpp
@@ -3591,7 +3591,7 @@ void huagao_ds::init_support_caps_ex(void)
 			if(msg == Msg::Get)	{ data = Capability::createOneValue<Str255>((CapType)SANE_OPT_ID_##name, str); return success(); }														\
 			std::string	path("");																		\
 			int			len = 0;																		\
-			copy_type(path, data.currentItem<Str255>());												\
+			path = data.currentItem<Str255>().data();												\
 			len = path.length();																		\
 			if(scanner_->get_value(SANE_OPT_ID_##name, &path[0], &len)) return success(); else return  { RC::Failure, CC::OperationError };									\
 		}																								\