diff --git a/README.md b/README.md
index 615c01e6ac456228f82a1b285d9094c591953df7..fc474c647367055bd61b5847c11e9c439cb2365b 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ snmpEngineTime : The number of seconds since the value of the snmpEngineBoots ob
                  reverts to zero.
 ```
 
-
+**Note**: this onyl a SNMP section that supersedes the original section "snmp_uptime". It will not touch the original check. You can control the usage of this section by disable/enable SNMP section "snmp_uptime_exetended"
 
 Check Info: