diff --git a/rss.md b/rss.md
index 8499fe9b1..a0b95da27 100644
--- a/rss.md
+++ b/rss.md
@@ -1,6 +1,7 @@
 # Rss
 
 - [[go]] https://en.wikipedia.org/wiki/RSS
+- [[spec]] https://www.rssboard.org/rss-specification
 
 
 [//begin]: # "Autogenerated link references for markdown compatibility"