diff --git a/testutil/wallet.go b/testutil/wallet.go
index b76232f..86a6330 100644
--- a/testutil/wallet.go
+++ b/testutil/wallet.go
@@ -23,6 +23,7 @@ type EphemeralWalletStore struct {
 	transactions               []wallet.Transaction
 }
 
+// ProcessChainRevertUpdate implements chain.Subscriber
 func (es *EphemeralWalletStore) ProcessChainRevertUpdate(cru *chain.RevertUpdate) error {
 	es.mu.Lock()
 	defer es.mu.Unlock()
@@ -65,6 +66,7 @@ func (es *EphemeralWalletStore) ProcessChainRevertUpdate(cru *chain.RevertUpdate
 	return nil
 }
 
+// ProcessChainApplyUpdate implements chain.Subscriber
 func (es *EphemeralWalletStore) ProcessChainApplyUpdate(cau *chain.ApplyUpdate, commit bool) error {
 	es.mu.Lock()
 	defer es.mu.Unlock()
@@ -190,6 +192,7 @@ func (es *EphemeralWalletStore) ProcessChainApplyUpdate(cau *chain.ApplyUpdate,
 	return nil
 }
 
+// Transactions returns the wallet's transactions.
 func (es *EphemeralWalletStore) Transactions(limit, offset int) ([]wallet.Transaction, error) {
 	es.mu.Lock()
 	defer es.mu.Unlock()
@@ -205,12 +208,14 @@ func (es *EphemeralWalletStore) Transactions(limit, offset int) ([]wallet.Transa
 	return es.transactions[offset:end], nil
 }
 
+// TransactionCount returns the number of transactions in the wallet.
 func (es *EphemeralWalletStore) TransactionCount() (uint64, error) {
 	es.mu.Lock()
 	defer es.mu.Unlock()
 	return uint64(len(es.transactions)), nil
 }
 
+// UnspentSiacoinElements returns the wallet's unspent siacoin outputs.
 func (es *EphemeralWalletStore) UnspentSiacoinElements() (utxos []types.SiacoinElement, _ error) {
 	es.mu.Lock()
 	defer es.mu.Unlock()
diff --git a/wallet/wallet.go b/wallet/wallet.go
index c9cc0da..9407d52 100644
--- a/wallet/wallet.go
+++ b/wallet/wallet.go
@@ -390,7 +390,7 @@ func (sw *SingleAddressWallet) SignTransaction(cs consensus.State, txn *types.Tr
 	return nil
 }
 
-// ScanHeight returns the block height the wallet has scanned to.
+// Tip returns the block height the wallet has scanned to.
 func (sw *SingleAddressWallet) Tip() types.ChainIndex {
 	sw.mu.Lock()
 	defer sw.mu.Unlock()