diff --git a/pages/common/pup.md b/pages/common/pup.md
index 4b32e85e7..36be34318 100644
--- a/pages/common/pup.md
+++ b/pages/common/pup.md
@@ -1,6 +1,7 @@
 # pup
 
 > Command line HTML parsing tool.
+> More information: <https://github.com/ericchiang/pup>.
 
 - Transform a raw HTML file into a cleaned, indented, and colored format: