diff --git a/doc/usage.md b/doc/usage.md
index 36dc76e..c66d84e 100644
--- a/doc/usage.md
+++ b/doc/usage.md
@@ -498,6 +498,7 @@ Upgrading checklist:
   Because of reindex electrs will be unable to serve your requests for a few hours.
   (The exact time depends on your hardware.)
   If you wish to check the database without reindexing run electrs with `--no-auto-reindex`.
+* The default DB path for the mainnet index was changed to `./db/bitcoin` (from `./db/mainnet`).
 * Make sure to allow accesses to bitcoind from local address, ideally whitelist it using `whitelist=download@127.0.0.1` bitcoind option.
   Either don't use `maxconnections` bitcoind option or set it to 12 or more.
 * If you use non-default P2P port for bitcoind adjust `electrs` configuration.