diff --git a/tren.rst b/tren.rst
index 22a83ef..930c657 100644
--- a/tren.rst
+++ b/tren.rst
@@ -172,6 +172,15 @@
          your.file          # Appended last
  
 
+       You may "nest" includes.  That is, you can include file ``x``,
+       that includes file ``y``, that includes file ``z`` and so on.
+       However, its easy to introduce a "circular reference" when you
+       do this.  Suppose file ``z`` tried to include file ``x`` in
+       this example?  You'd be specifying an infinite inclusion loop.
+       To avoid this, **tren** limits the total number of inclusions
+       to 50.  If you exceed this, you'll get an error message and the
+       program will terminate.
+
   .. NOTE:: There is one important difference between an actual
             command line and keeping the arguments in a file like
             this.  *Filename wildcards are not expanded within the
@@ -180,7 +189,7 @@
             However, the ``*`` metacharacter has no such meaning when
             used inside an arguments file.
 
-  -l string   File "extension" delimiter string.
+ -l string   File "extension" delimiter string.
 
                (*Default*: ".")
 
@@ -1061,7 +1070,7 @@
 
 ::
 
-  $Id: tren.rst,v 1.134 2010/01/22 17:46:04 tundra Exp $
+  $Id: tren.rst,v 1.135 2010/01/23 00:52:27 tundra Exp $
 
 You can find the latest version of this program at: