diff --git a/Documentation/doc/resources/1.8.20/footer.html b/Documentation/doc/resources/1.8.20/footer.html
index a51402dda01..cd9ad4553bc 100644
--- a/Documentation/doc/resources/1.8.20/footer.html
+++ b/Documentation/doc/resources/1.8.20/footer.html
@@ -7,13 +7,13 @@ move the footer to the bottom of the page. -->
 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
   <ul>
     $navpath
-    <li class="footer">$generatedby <a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion </li>
+    <li class="footer">$generatedby <a href="http://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion </li>
   </ul>
 </div>
 <!--END GENERATE_TREEVIEW-->
 <!--BEGIN !GENERATE_TREEVIEW-->
 <hr class="footer"/><address class="footer"><small>
-$generatedby&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion
+$generatedby&#160;<a href="http://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion
 </small></address>
 <!--END !GENERATE_TREEVIEW-->
 </div>