diff --git a/ledger.md b/ledger.md
index 4b1593ade..41155ddc1 100644
--- a/ledger.md
+++ b/ledger.md
@@ -255,6 +255,7 @@ $ ledger reg
     ^regex$
     @payee
     %tag
+    %tag=value
     =note
     #code
     term and term