diff --git a/re.html b/re.html
index 4717ec2..ef1830b 100644
--- a/re.html
+++ b/re.html
@@ -421,6 +421,7 @@ <h3>Patterns</h3>
                  / '=' name
                  / '{}'
                  / '{~' exp '~}'
+		 / '{|' exp '|}'
                  / '{' exp '}'
                  / '.'
                  / name S !arrow