diff --git a/hledger-lib/hledger_journal.m4.md b/hledger-lib/hledger_journal.m4.md
index f97091349..457525cf8 100644
--- a/hledger-lib/hledger_journal.m4.md
+++ b/hledger-lib/hledger_journal.m4.md
@@ -99,7 +99,8 @@ of the following optional fields, separated by spaces:
 - a comment (any remaining text following a semicolon until end of line,
              and any following indented lines beginning with a semicolon)
 - 0 or more indented *posting* lines, describing what was transferred
-  and the accounts involved.
+  and the accounts involved (and/or indented comment lines;
+  but not blank lines or non-indented lines).
 
 Here's a simple journal file containing one transaction:
 ```journal