diff --git a/include/boost/regex/detail/fileiter.hpp b/include/boost/regex/detail/fileiter.hpp
index 0fb27807..1325ed5e 100644
--- a/include/boost/regex/detail/fileiter.hpp
+++ b/include/boost/regex/detail/fileiter.hpp
@@ -48,7 +48,7 @@
 namespace boost{
    namespace re_detail{
 
-typedef WIN32_FIND_DATA _fi_find_data;
+typedef WIN32_FIND_DATAA _fi_find_data;
 typedef HANDLE _fi_find_handle;
 
    } // namespace re_detail