Index: lib/Support/Windows/Path.inc
===================================================================
--- lib/Support/Windows/Path.inc
+++ lib/Support/Windows/Path.inc
@@ -418,3 +418,3 @@
   RenameInfo.RootDirectory = 0;
-  RenameInfo.FileNameLength = ToWide.size();
+  RenameInfo.FileNameLength = (ToWide.size() * sizeof(wchar_t));
   std::copy(ToWide.begin(), ToWide.end(), &RenameInfo.FileName[0]);