diff --git a/Doc/inst/inst.tex b/Doc/inst/inst.tex
index df7c656..6db22ac 100644
--- a/Doc/inst/inst.tex
+++ b/Doc/inst/inst.tex
@@ -632,7 +632,7 @@
 installation base directory when you run the setup script.  For example,
 
 \begin{verbatim}
-python setup.py --install-base=/tmp
+python setup.py install --install-base=/tmp
 \end{verbatim}
 
 would install pure modules to \filevar{/tmp/python/lib} in the first