diff --git a/Doc/ref/ref7.tex b/Doc/ref/ref7.tex
index 5c076e3..3c43488 100644
--- a/Doc/ref/ref7.tex
+++ b/Doc/ref/ref7.tex
@@ -298,6 +298,7 @@
 
 \section{Function definitions\label{function}}
 \indexii{function}{definition}
+\stindex{def}
 
 A function definition defines a user-defined function object (see
 section \ref{types}):
@@ -393,6 +394,7 @@
 
 \section{Class definitions\label{class}}
 \indexii{class}{definition}
+\stindex{class}
 
 A class definition defines a class object (see section \ref{types}):
 \obindex{class}