diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index bd5db8a6c24..cf12bc5ca29 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1341,7 +1341,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
Waiting to apply WAL at recovery because it is delayed.
- IO>
+ IO>
BufFileRead>
Waiting for a read from a buffered file.
@@ -1457,6 +1457,10 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
LogicalRewriteSync>
Waiting for logical rewrite mappings to reach stable storage.
+
+ LogicalRewriteTruncate>
+ Waiting for truncate of mapping data during a logical rewrite.
+
LogicalRewriteWrite>
Waiting for a write of logical rewrite mappings.