diff --git a/doc/Extensions/Applications.md b/doc/Extensions/Applications.md
index e24e62958b..460d813ca7 100644
--- a/doc/Extensions/Applications.md
+++ b/doc/Extensions/Applications.md
@@ -1643,10 +1643,21 @@ extend postgres /etc/snmp/postgres
 6. Verify the path to check_postgres.pl in /etc/snmp/postgres is
 correct.
 
-7. If you wish it to ignore the database postgres for totalling up the
-stats, set ignorePG to 1(the default) in /etc/snmp/postgres. If you
-are using netdata or the like, you may wish to set this or otherwise
-that total will be very skewed on systems with light or moderate usage.
+7. (Optional) If you wish to change the DB username (default: pgsql), enable
+the postgres DB in totalling (e.g. set ignorePG to 0, default: 1), or set a
+hostname for check_postgres.pl to connect to (default: the Unix Socket postgresql
+is running on), then create the file /etc/snmp/postgres.config with the following
+contents (note that not all of them need be defined, just whichever you'd like to
+change):
+```
+DBuser=monitoring
+ignorePG=0
+DBhost=localhost
+```
+
+Note that if you are using netdata or the like, you may wish to set ignorePG
+to 1 or otherwise that total will be very skewed on systems with light or
+moderate usage.
 
 The application should be auto-discovered as described at the top of
 the page. If it is not, please follow the steps set out under `SNMP