diff --git a/source/basic.tex b/source/basic.tex
index a813f68d9c..682d10a82a 100644
--- a/source/basic.tex
+++ b/source/basic.tex
@@ -4286,10 +4286,10 @@
 duration is determined by the construct used to create the object and is
 one of the following:
 \begin{itemize}
-\item static storage duration
-\item thread storage duration
-\item automatic storage duration
-\item dynamic storage duration
+\item static storage duration,
+\item thread storage duration,
+\item automatic storage duration,
+\item dynamic storage duration.
 \end{itemize}
 \begin{note}
 After the duration of a region of storage has ended,