diff --git a/doc/Extensions/MIB-based-polling.md b/doc/Extensions/MIB-based-polling.md
index 5f73ff7485..b59f848883 100644
--- a/doc/Extensions/MIB-based-polling.md
+++ b/doc/Extensions/MIB-based-polling.md
@@ -145,6 +145,8 @@ graph.
     LibreNMS in the RRD files or the database tables `device_oids`
 
 ## Configuration
+### Main Configuration
+In `/opt/librenms/config.php` add `$config['poller_modules']['mib'] = 1;`
 
 ### Discovery