diff --git a/PLUMBING.md b/PLUMBING.md
index d0775f8..9090fdf 100644
--- a/PLUMBING.md
+++ b/PLUMBING.md
@@ -18,7 +18,7 @@ plumb to denote
 type is text
 data matches 'denote:([0-9]+T[0-9]+)'
 plumb to denote
-plumb start Denote $1
+plumb start Denote $0
 ```
 
 ## Encryption support