diff --git a/slides/sysdev-root-filesystem-contents/sysdev-root-filesystem-contents.tex b/slides/sysdev-root-filesystem-contents/sysdev-root-filesystem-contents.tex
index 587122abf..61b03397a 100644
--- a/slides/sysdev-root-filesystem-contents/sysdev-root-filesystem-contents.tex
+++ b/slides/sysdev-root-filesystem-contents/sysdev-root-filesystem-contents.tex
@@ -46,7 +46,7 @@ \subsection{Contents}
     \item[/usr/lib]Non-basic libraries
     \item[/usr/sbin]Non-basic system programs
     \end{description}
-  \item[/var] Variable data files. This includes spool directories and
+  \item[/var] Variable data files, for system services. This includes spool directories and
     files, administrative and logging data, and transient and
     temporary files
   \end{description}