diff --git a/pages/common/cowsay.md b/pages/common/cowsay.md
index f74bd2330..c674d9fd3 100644
--- a/pages/common/cowsay.md
+++ b/pages/common/cowsay.md
@@ -1,6 +1,7 @@
 # cowsay
 
 > Generate an ASCII character (by default a cow) saying or thinking something.
+> More information: <https://github.com/tnalpgge/rank-amateur-cowsay>.
 
 - Print an ASCII cow saying "Hello world!":