diff --git a/config.toml b/config.toml
index 2434e0c..dbeec4a 100644
--- a/config.toml
+++ b/config.toml
@@ -4,7 +4,7 @@ DefaultContentLanguage = "ja"
 HasCJKLanguage = true
 title = "点と接線。"
 theme = "qiss"
-copyright = "©2011 <a href=\"mailto:mail@riq0h.jp\">Rikuoh Tsujitani</a> | <a rel=\"me\" href=\"https://mystech.ink/@riq0h\">Fediverse</a> | <a href=\"https://riq0h.jp/index.xml\">RSS</a> | <a href=\"https://riq0h.jp/tags/novel\">小説</a>"
+copyright = "©2011 <a href=\"mailto:mail@riq0h.jp\">Rikuoh Tsujitani</a> | <a rel=\"me\" href=\"https://mystech.ink/@riq0h\">Fediverse</a> | <a href=\"https://keyoxide.org/48DD5CD37CAE0C69E1637DE2010F09DEA298C717\">Keyoxide<a/> | <a href=\"https://riq0h.jp/index.xml\">RSS</a> | <a href=\"https://riq0h.jp/tags/novel\">小説</a>"
 Paginate = 8 # Number of posts per page
 enableRobotsTXT = true
 summarylength = 200