diff --git a/docs/CompilerDriver.html b/docs/CompilerDriver.html
index e77cd03e059..5830a30833d 100644
--- a/docs/CompilerDriver.html
+++ b/docs/CompilerDriver.html
@@ -114,8 +114,10 @@ delete them on exit. This option can also take an argument: the
 <tt class="docutils literal"><span class="pre">--save-temps=obj</span></tt> switch will write files into the directory specified with
 the <tt class="docutils literal"><span class="pre">-o</span></tt> option. The <tt class="docutils literal"><span class="pre">--save-temps=cwd</span></tt> and <tt class="docutils literal"><span class="pre">--save-temps</span></tt> switches are
 both synonyms for the default behaviour.</li>
-<li><tt class="docutils literal"><span class="pre">--temp-dir</span></tt> - Write temporary files to the specified directory. This option
-overrides <tt class="docutils literal"><span class="pre">--save-temps</span></tt>.</li>
+<li><tt class="docutils literal"><span class="pre">--temp-dir</span> <span class="pre">DIRECTORY</span></tt> - Store temporary files in the given directory. This
+directory is deleted on exit unless <tt class="docutils literal"><span class="pre">--save-temps</span></tt> is specified. If
+<tt class="docutils literal"><span class="pre">--save-temps=obj</span></tt> is also specified, <tt class="docutils literal"><span class="pre">--temp-dir</span></tt> is given the
+precedence.</li>
 <li><tt class="docutils literal"><span class="pre">--check-graph</span></tt> - Check the compilation for common errors like mismatched
 output/input language names, multiple default edges and cycles. Because of
 plugins, these checks can't be performed at compile-time. Exit with code zero