diff --git a/doc/asciidoc/fluxbox.txt b/doc/asciidoc/fluxbox.txt
index 87286ea3..de967911 100644
--- a/doc/asciidoc/fluxbox.txt
+++ b/doc/asciidoc/fluxbox.txt
@@ -1259,6 +1259,14 @@ Default right: *Shade Minimize Maximize Close*
 'LHalf' and 'RHalf' are buttons to quickly place a window into the left and
 right half of the current monitor.
 
+*session.screen0.pin{Left|Right}*: 'classes'::
+Sort the system tray icons according to order specified in 'classes', which is
+a comma-separated list of CLASSCLASS properties of the X clients (The second
+field of WM_CLASS from the output of the *xprop(1)* utility).
++
+Consider a system tray "A C B D E F". With pinRight set to "A, B" and pinLeft
+set to "E, F" it will look like "E F [C D] A B" while the icons in [] are
+unordered as usual.
 
 All of the 'location' resources following require a pathname to their specific
 files. This is where you can specify different files. Most of the defaults will
diff --git a/doc/fluxbox.1.in b/doc/fluxbox.1.in
index dbec41d3..90c69fde 100644
--- a/doc/fluxbox.1.in
+++ b/doc/fluxbox.1.in
@@ -2044,9 +2044,12 @@ are buttons to quickly place a window into the left and right half of the curren
 .PP
 \fBsession\&.screen0\&.pin{Left|Right}\fR: \fIclasses\fR
 .RS 4
-Sort the system tray icons according to order specified in \fIclasses\fR, which is a comma\-separated list of CLASSCLASS properties of the X clients (The second field of WM_CLASS from the output of the \fBxprop(1)\fR utility)\&.
+Sort the system tray icons according to order specified in
+\fIclasses\fR, which is a comma\-separated list of CLASSCLASS properties of the X clients (The second field of WM_CLASS from the output of the
+\fBxprop(1)\fR
+utility)\&.
 .sp
-Consider a system tray "A C B D E F"\&. With pinRight set to "A, B" and pinLeft set to "E, F" it will look like "E F [C D] A B" while the icons in [] are unordered as usual.
+Consider a system tray "A C B D E F"\&. With pinRight set to "A, B" and pinLeft set to "E, F" it will look like "E F [C D] A B" while the icons in [] are unordered as usual\&.
 .RE
 .sp
 All of the \fIlocation\fR resources following require a pathname to their specific files\&. This is where you can specify different files\&. Most of the defaults will be located in the user\(cqs \fB~/\&.fluxbox\fR directory\&.