diff --git a/AdvancedInstall.md b/AdvancedInstall.md
index 30bd4d3..8fd496f 100644
--- a/AdvancedInstall.md
+++ b/AdvancedInstall.md
@@ -309,7 +309,7 @@ The build or install steps could result in an error that says a compiler is need
 
 2. Early versions of 5.1.x of MinGW had a bug in the bundled Gnu assembler. If typing "`as --version`" at the command line gives "`GNU assembler (GNU Binutils) 2.20`", then you have an affected version. To fix this, download an upgrade to a newer version of MinGW which has `GNU assembler (GNU Binutils) 2.20.51.20100613` or later.
 
-3. Configure distutils to use MinGW. To configure distutils to use mingw32, create a file called [http://tahoe-lafs.org/trac/tahoe-lafs/raw-attachment/wiki/AdvancedInstall/distutils.cfg distutils.cfg] in `C:\Python26\lib\distutils`, and put in that file:
+3. Configure distutils to use MinGW. If you have another C/C++ compiler installed, such as the cygwin one, distutils may default to using it instead of the mingw one. To configure distutils to use mingw32, create a file called [http://tahoe-lafs.org/trac/tahoe-lafs/raw-attachment/wiki/AdvancedInstall/distutils.cfg distutils.cfg] in `C:\Python26\lib\distutils`, and put in that file (you may also need to use the script from [http://mail.python.org/pipermail/python-dev/2004-January/041676.html this email] in order to "register" the mingw compiler):
 
 ```
 [build]