diff --git a/doc/README.monitoring_tables b/doc/README.monitoring_tables
index 6ca7d9c18c..f8dcdacc74 100644
--- a/doc/README.monitoring_tables
+++ b/doc/README.monitoring_tables
@@ -99,6 +99,7 @@ Monitoring tables
       - MON$REMOTE_VERSION (version of the remote protocol)
       - MON$REMOTE_HOST (remote host name)
       - MON$REMOTE_OS_USER (remote OS user name)
+      - MON$AUTH_METHOD (authentication method used for connection)
       - MON$SYSTEM_FLAG  (system flag)
           0: user attachment
           1: system attachment