diff --git a/Windows.md b/Windows.md
index bc01e3e..08ae98d 100644
--- a/Windows.md
+++ b/Windows.md
@@ -27,7 +27,7 @@ EncFS can be compiled and used on Cygwin.
 
 Here are the required steps.
 
-1. Install [Cygwin](https://cygwin.com) with the following packages :
+1. Install [Cygwin](https://cygwin.com) (64 bits version preferred for now because of [this](https://github.com/billziss-gh/winfsp/issues/161)) with the following packages :
 * cmake
 * make
 * gcc-g++