diff --git a/hledger-lib/hledger_journal.m4.md b/hledger-lib/hledger_journal.m4.md
index f4702f69c..f16a76273 100644
--- a/hledger-lib/hledger_journal.m4.md
+++ b/hledger-lib/hledger_journal.m4.md
@@ -1285,7 +1285,7 @@ by the usual numeric backreferences in REPLACEMENT.
 Eg:
 
 ```journal
-alias /^(.+):bank:([^:]+)(.*)/ = \1:\2 \3
+alias /^(.+):bank:([^:]+):(.*)/ = \1:\2 \3
 ; rewrites "assets:bank:wells fargo:checking" to  "assets:wells fargo checking"
 ```