diff --git a/doc/Accesskeys.md b/doc/Accesskeys.md
index 24b4dd4e7d..3369f9afd9 100644
--- a/doc/Accesskeys.md
+++ b/doc/Accesskeys.md
@@ -3,6 +3,8 @@ Accesskeys in Friendica
 
 * [Home](help)
 
+For an overview of the modifier key of the different browsers we suggest this [Wikipedia](https://en.wikipedia.org/wiki/Access_key) article.
+
 General
 -------
 * p: profile