diff --git a/README.md b/README.md
index 93708e0..8dc4023 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ The tikz library is contained in the files:
 * tikzlibrarytrackschematic.trafficcontrol.code.tex,
 * tikzlibrarytrackschematic.vehicles.code.tex,
 * tikzlibrarytrackschematic.constructions.code.tex,
+* tikzlibrarytrackschematic.symbology.code.tex,
 * tikzlibrarytrackschematic.electrics.code.tex, and
 * tikzlibrarytrackschematic.measures.code.tex.
 
diff --git a/doc/manual.pdf b/doc/manual.pdf
index d68ac8d..8ab7d59 100644
Binary files a/doc/manual.pdf and b/doc/manual.pdf differ
diff --git a/doc/manual.tex b/doc/manual.tex
index 9c85bc7..896ff57 100644
--- a/doc/manual.tex
+++ b/doc/manual.tex
@@ -53,12 +53,13 @@
 
     The Ti\emph{k}Z-\emph{trackschematic} library is a toolbox of symbols geared primarily towards creating track schematic for either research or educational purposes.
     It provides a Ti\emph{k}Z frontend to some of the symbols which maybe needed to describe situations and layouts in railway operation.
-    The library is divided into four sublibraries:
+    The library is divided into the following sublibraries:
     \begin{itemize*}[label={}]
       \item \texttt{topology},
       \item \texttt{trafficcontrol},
       \item \texttt{vehicles},
       \item \texttt{constructions},
+      \item \texttt{symbology},
       \item \texttt{electrics}, and
       \item \texttt{measures}.
     \end{itemize*}