diff --git a/blog/templates/index.html/footer.html b/blog/templates/index.html/footer.html
index 8e11c0b..6e9a2e7 100644
--- a/blog/templates/index.html/footer.html
+++ b/blog/templates/index.html/footer.html
@@ -4,7 +4,7 @@
 		</table>
 		<footer>
 			<p>
-				Copyright &copy; 2016-2020 Nicolás Ortega Froysa<br />
+				Copyright &copy; 2016-${copyyear} Nicolás Ortega Froysa<br />
 				This page is licensed under the <a href="https://creativecommons.org/licenses/by-sa/4.0/" target="_blank" >CC-BY-SA 4.0 International</a> license.
 			</p>
 		</footer>
diff --git a/blog/templates/page/footer.html b/blog/templates/page/footer.html
index c92efd7..adc1212 100644
--- a/blog/templates/page/footer.html
+++ b/blog/templates/page/footer.html
@@ -3,7 +3,7 @@
 		</table>
 		<footer>
 			<p>
-				Copyright &copy; 2016-2020 Nicolás Ortega Froysa<br />
+				Copyright &copy; 2016-${copyyear} Nicolás Ortega Froysa<br />
 				This page is licensed under the <a href="https://creativecommons.org/licenses/by-sa/4.0/" target="_blank" >CC-BY-SA 4.0 International</a> license.
 			</p>
 		</footer>
diff --git a/config.cfg b/config.cfg
index 9d1a0d1..443b7e2 100644
--- a/config.cfg
+++ b/config.cfg
@@ -12,8 +12,7 @@ sitemail = nicolas AT ortegas DOT org
 # site generator.
 sitegenerator = saait (https://git.codemadness.org/saait/file/README.html)
 
-# page
-
+## page
 # page language.
 lang = en
 # author (global default).
@@ -22,6 +21,8 @@ author = Nicolás Ortega Froysa
 keywords = programming, language, music, society, religion, blog
 # site description (global default).
 description = Personal website for publishing projects and a blog.
+# copyright year
+copyyear = 2020
 
 # default title.
 title =
diff --git a/templates/page/footer.html b/templates/page/footer.html
index c92efd7..adc1212 100644
--- a/templates/page/footer.html
+++ b/templates/page/footer.html
@@ -3,7 +3,7 @@
 		</table>
 		<footer>
 			<p>
-				Copyright &copy; 2016-2020 Nicolás Ortega Froysa<br />
+				Copyright &copy; 2016-${copyyear} Nicolás Ortega Froysa<br />
 				This page is licensed under the <a href="https://creativecommons.org/licenses/by-sa/4.0/" target="_blank" >CC-BY-SA 4.0 International</a> license.
 			</p>
 		</footer>