diff --git a/source/expressions.tex b/source/expressions.tex
index bce3d8d930..846151033b 100644
--- a/source/expressions.tex
+++ b/source/expressions.tex
@@ -8119,7 +8119,7 @@
   it is not of class type nor (possibly multidimensional) array thereof, or
 \item
   it is of class type or (possibly multidimensional) array thereof,
-  that class type has a constexpr destructor, and
+  that class type has a constexpr destructor\iref{dcl.constexpr}, and
   for a hypothetical expression $E$
   whose only effect is to destroy \tcode{a},
   $E$ would be a core constant expression