diff --git a/README b/README
index bdbea42a..62fbe064 100644
--- a/README
+++ b/README
@@ -47,7 +47,7 @@ Windows prerequisites
 - Visual Studio 2008 (Express is enough) is needed to build C extensions. (http://www.microsoft.com/Express/)
 - PyQt 4.6 (http://www.riverbankcomputing.co.uk/news)
 - Python Imaging Library for dupeGuru PE. (http://www.pythonware.com/products/pil/)
-- PyInstaller, if you want to build a exe. You don't need it if you just want to run dupeGuru. (http://www.pyinstaller.org/)
+- cx_Freeze, if you want to build a exe. You don't need it if you just want to run dupeGuru. (http://cx-freeze.sourceforge.net/)
 - Advanced Installer, if you want to build the installer file. (http://www.advancedinstaller.com/)
 
 Building dupeGuru