diff --git a/indexer/README b/indexer/README
index 26d576f20eadfe5e00c7d35d31e21c2ca512909e..8ab6aba5bc38c184cdeb52e847b1d758f1aa096b 100644
--- a/indexer/README
+++ b/indexer/README
@@ -58,6 +58,9 @@ db_username=flowee_indexer
 db_password=s3cr3t
 db_port=5432
 
+[spentdb]
+enabled=false
+
 # The Hub server address, with optional port.
 [services]
 #hub=router:1235 (mainnet) 11235 (testnet)