diff --git a/share/fast_io/fast_io_inc/host/posix.inc b/share/fast_io/fast_io_inc/host/posix.inc
index 612dd720..26d06608 100644
--- a/share/fast_io/fast_io_inc/host/posix.inc
+++ b/share/fast_io/fast_io_inc/host/posix.inc
@@ -4,9 +4,10 @@ export namespace fast_io
     using ::fast_io::posix_stdin_number;
     using ::fast_io::posix_stdout_number;
     using ::fast_io::posix_stderr_number;
-
+#if ((!defined(_WIN32) || defined(__WINE__)) || defined(__CYGWIN__))
     namespace posix
     {
         using ::fast_io::posix::libc_ioctl;
     }
+#endif
 }
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