diff --git a/master.html b/master.html
index 0859b88b..1a000123 100644
--- a/master.html
+++ b/master.html
@@ -1014,6 +1014,11 @@ books and calendars.</p>
 <p>Log bad PUT request content (for further diagnostics)</p>
 <p>Default: `False'</p>
 </section>
+<section class="level5" id="backtrace_on_debug">
+<h5>backtrace_on_debug <a class="headerlink" href="#backtrace_on_debug">&para;</a></h5>
+<p>Log backtrace on level=debug</p>
+<p>Default: `True'</p>
+</section>
 </section>
 <section class="level4" id="headers">
 <h4>headers <a class="headerlink" href="#headers">&para;</a></h4>