diff --git a/loro.cfg b/loro.cfg
index 2c392ef..b0a01ec 100644
--- a/loro.cfg
+++ b/loro.cfg
@@ -116,6 +116,7 @@ STALE_DAYS: 7
 SUB_MAP_FILE:
 SERVER_ID_URL: http://downloads.freedmr.uk/downloads/FreeDMR_Hosts.csv
 SERVER_ID_FILE: server_ids.tsv
+TOPO_FILE: topography.json
 
 #Read further repeater configs from MySQL
 [MYSQL]