diff --git a/src/backend/replication/slotfuncs.c b/src/backend/replication/slotfuncs.c
index 16a35279037..79d7f1372d6 100644
--- a/src/backend/replication/slotfuncs.c
+++ b/src/backend/replication/slotfuncs.c
@@ -226,7 +226,8 @@ pg_drop_replication_slot(PG_FUNCTION_ARGS)
 }
 
 /*
- * pg_get_replication_slots - SQL SRF showing active replication slots.
+ * pg_get_replication_slots - SQL SRF showing all replication slots
+ * that currently exist on the database cluster.
  */
 Datum
 pg_get_replication_slots(PG_FUNCTION_ARGS)