diff --git a/org.rodinp.handbook.feature/latex/faq.tex b/org.rodinp.handbook.feature/latex/faq.tex
index be5a82acbdd1462dcde7c5d003440ea151bc99e2..aef716b58417b9666cbbb701d0812b298068c1d2 100644
--- a/org.rodinp.handbook.feature/latex/faq.tex
+++ b/org.rodinp.handbook.feature/latex/faq.tex
@@ -295,7 +295,7 @@ This can take some time. A ``Progress'' view can be opened at the bottom right o
 Yes, it is.  Check out Section~\ref{use_provers_effectively} to begin using the provers.
 
 \subsection{How can I do a Proof by Induction?}
-
+\index{induction@proof by induction}
 \href{http://wiki.event-b.org/index.php/Induction_proof}{This page about proof by induction} will give you some starting tips.
 
 \subsection{What do the labels on the proof tree mean?}