diff --git a/source/expressions.tex b/source/expressions.tex
index ee17db067b..357ab782ef 100644
--- a/source/expressions.tex
+++ b/source/expressions.tex
@@ -1381,7 +1381,6 @@
 
 \pnum
 \indextext{name}%
-\indextext{id-expression}%
 An \grammarterm{id-expression} is a restricted form of a
 \grammarterm{primary-expression}.
 \begin{note}