diff --git a/README.rst b/README.rst
index a570b72..268bf16 100644
--- a/README.rst
+++ b/README.rst
@@ -8,8 +8,9 @@ To build::
 
  cd cegcc-build
  git submodule update --init
- cd build-arm-mingw32ce
- ./build-mingw32ce.sh --prefix=/where/to/install
+ mkdir /tmp/cegcc-output
+ cd /tmp/cegcc-output
+ $OLDPWD/build-arm-mingw32ce/build-mingw32ce.sh --prefix=/where/to/install
 
 If you won't specify `--prefix`, it will install to
 `cegcc-build/bindist-arm-mingw32ce/`