diff --git a/documentation/src/html_footer b/documentation/src/html_footer
index 0ae62b10a..56490cd7d 100644
--- a/documentation/src/html_footer
+++ b/documentation/src/html_footer
@@ -1,7 +1,7 @@
 <!--BEGIN GENERATE_TREEVIEW-->
     <li class="footer">
       <!-- Generated for $projectname by Doxygen -->
-      &copy; 1998-2020 by Bill Spitzak and others. &nbsp;&nbsp;&nbsp;
+      Copyright &copy; 1998-2021 by Bill Spitzak and others. &nbsp;&nbsp;&nbsp;
       <a href="https://www.fltk.org"><img src="tiny.png" align="bottom" alt="FLTK"></a>
      </li>
    </ul>
@@ -10,7 +10,7 @@
 <!--BEGIN !GENERATE_TREEVIEW-->
 <hr class="footer"/><address class="footer"><small>
     <!-- Generated for $projectname by Doxygen -->
-    &copy; 1998-2020 by Bill Spitzak and others. &nbsp;&nbsp;&nbsp;
+    Copyright &copy; 1998-2021 by Bill Spitzak and others. &nbsp;&nbsp;&nbsp;
     <a href="https://www.fltk.org"><img src="tiny.png" align="bottom" alt="FLTK"></a>
 </small></address>
 <hr class="footer"/><address class="footer"><small>