diff --git a/about.html b/about.html
index ee27a5b5b..2c4530185 100644
--- a/about.html
+++ b/about.html
@@ -43,6 +43,8 @@
-Copyright © 2006-2018 Ricardo Garcia Gonzalez
+Copyright © 2006-2011 Ricardo Garcia Gonzalez
+Copyright © 2011-2018 youtube-dl developers
+