diff --git a/docs/index.md b/docs/index.md
index 570a8430..05e66039 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -4677,8 +4677,8 @@ Notably, this is the preferred method for preparing `DepositPreauth` or `Account
 
 Name | Type | Description
 ---- | ---- | -----------
-transaction | [transaction](https://developers.ripple.com/transaction-formats.html) | The specification (JSON) of the transaction to prepare. Set `Account` to the address of the account that is creating the transaction. You may omit auto-fillable fields like `Fee`, `Flags`, and `Sequence` to have them set automatically.
-instructions | [instructions](#transaction-instructions) | *Optional* Instructions for executing the transaction.
+transaction | [Transaction](https://xrpl.org/transaction-formats.html) | The specification (JSON) of the transaction to prepare. Set `Account` to the address of the account that is creating the transaction. You may omit auto-fillable fields like `Fee`, `Flags`, and `Sequence` to have them set automatically.
+instructions | [Instructions](#transaction-instructions) | *Optional* Instructions for executing the transaction.
 
 ### Return Value
 
diff --git a/docs/src/prepareTransaction.md.ejs b/docs/src/prepareTransaction.md.ejs
index 48f4bdd9..7cd5345a 100644
--- a/docs/src/prepareTransaction.md.ejs
+++ b/docs/src/prepareTransaction.md.ejs
@@ -12,8 +12,8 @@ Notably, this is the preferred method for preparing `DepositPreauth` or `Account
 
 Name | Type | Description
 ---- | ---- | -----------
-transaction | [transaction](https://developers.ripple.com/transaction-formats.html) | The specification (JSON) of the transaction to prepare. Set `Account` to the address of the account that is creating the transaction. You may omit auto-fillable fields like `Fee`, `Flags`, and `Sequence` to have them set automatically.
-instructions | [instructions](#transaction-instructions) | *Optional* Instructions for executing the transaction.
+transaction | [Transaction](https://xrpl.org/transaction-formats.html) | The specification (JSON) of the transaction to prepare. Set `Account` to the address of the account that is creating the transaction. You may omit auto-fillable fields like `Fee`, `Flags`, and `Sequence` to have them set automatically.
+instructions | [Instructions](#transaction-instructions) | *Optional* Instructions for executing the transaction.
 
 ### Return Value
 
diff --git a/src/transaction/utils.ts b/src/transaction/utils.ts
index b25e8db9..57edcd4a 100644
--- a/src/transaction/utils.ts
+++ b/src/transaction/utils.ts
@@ -293,6 +293,7 @@ function prepareTransaction(
     const cushion = api._feeCushion
     return api.getFee(cushion).then((fee) => {
       return api.connection.getFeeRef().then((feeRef) => {
+        // feeRef is the reference transaction cost in "fee units"
         const extraFee =
           newTxJSON.TransactionType !== 'EscrowFinish' ||
           newTxJSON.Fulfillment === undefined