diff --git a/source/expressions.tex b/source/expressions.tex
index d91fac60e0..a6653d105d 100644
--- a/source/expressions.tex
+++ b/source/expressions.tex
@@ -9166,7 +9166,7 @@
 is a \defnadj{constant}{expression}
 unless it is a prvalue whose result object\iref{basic.lval}
 has a constituent value that is an invalid pointer value\iref{basic.compound}
-or is indeterminate or erroneous\iref{basic.indet}
+or is indeterminate or erroneous\iref{basic.indet}.
 
 \pnum
 A constant expression is an \defnadj{immediate}{constant}{expression}