diff --git a/tools/widl/write_msft.c b/tools/widl/write_msft.c
index 51227bf9dd0..4e7edf3a150 100644
--- a/tools/widl/write_msft.c
+++ b/tools/widl/write_msft.c
@@ -2418,7 +2418,7 @@ static int save_all_changes(msft_typelib_t *typelib)
 
     retval = TYPE_E_IOERROR;
 
-    fd = creat(typelib->typelib->filename, 0666);
+    fd = open(typelib->typelib->filename, O_CREAT | O_WRONLY | O_TRUNC | O_BINARY, 0666);
     if (fd == -1) return retval;
 
     filepos = sizeof(MSFT_Header) + sizeof(MSFT_SegDir);