diff --git a/README.md b/README.md
index da8dc4a..d66099b 100644
--- a/README.md
+++ b/README.md
@@ -48,9 +48,9 @@ vim .env # edit your config
 + `WEBHOOK_URL`: Optional. Callback URL for incoming and outgoing payment events, see below.
 + `FEE_RESERVE`: (default: false) Keep fee reserve for each user
 + `ALLOW_ACCOUNT_CREATION`: (default: true) Enable creation of new accounts
-+ `MAX_RECEIVE_AMOUNT`: (default: 0 = no limit) Set maximum amount for which an invoice can be created
-+ `MAX_SEND_AMOUNT`: (default: 0 = no limit) Set maximum amount of an invoice that can be paid
-+ `MAX_ACCOUNT_BALANCE`: (default: 0 = no limit) Set maximum balance for each account
++ `MAX_RECEIVE_AMOUNT`: (default: 0 = no limit) Set maximum amount (in satoshi) for which an invoice can be created
++ `MAX_SEND_AMOUNT`: (default: 0 = no limit) Set maximum amount (in satoshi) of an invoice that can be paid
++ `MAX_ACCOUNT_BALANCE`: (default: 0 = no limit) Set maximum balance (in satoshi) for each account
 
 ### Macaroon