diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 817fd9f4ca7..88450facebd 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1737,7 +1737,38 @@ description | Waiting for a newly initialized WAL file to reach durable storage
status text
- Activity status of the WAL receiver process
+ Activity status of the WAL receiver process. Possible values are:
+
+
+
+ restarting: WAL receiver has been asked to
+ restart streaming.
+
+
+
+
+ starting: WAL receiver process has been launched
+ but is not yet initialized.
+
+
+
+
+ stopping: WAL receiver has been requested to
+ stop.
+
+
+
+
+ streaming: WAL receiver is streaming WAL data.
+
+
+
+
+ waiting: WAL receiver has stopped streaming and
+ is waiting for new instructions from the startup process.
+
+
+