diff --git a/doc/Support/Configuration.md b/doc/Support/Configuration.md
index 4ef27c2c0c..99d0eac664 100644
--- a/doc/Support/Configuration.md
+++ b/doc/Support/Configuration.md
@@ -126,6 +126,10 @@ $config['show_locations_dropdown'] = 1;  # Enable Locations dropdown on menu
 $config['show_services']           = 0;  # Enable Services on menu
 $config['int_customers']           = 1;  # Enable Customer Port Parsing
 $config['customers_descr']         = 'cust'; // The description to look for in ifDescr. Can be an array as well array('cust','cid');
+$config['transit_descr']           = ""; // Add custom transit descriptions (can be an array)
+$config['peering_descr']           = ""; // Add custom peering descriptions (can be an array)
+$config['core_descr']              = ""; // Add custom core descriptions (can be an array)
+$config['custom_descr']            = ""; // Add custom interface descriptions (can be an array)
 $config['int_transit']             = 1;  # Enable Transit Types
 $config['int_peering']             = 1;  # Enable Peering Types
 $config['int_core']                = 1;  # Enable Core Port Types