diff --git a/accounts/manager.go b/accounts/manager.go
index 6be081da37..acf41ed8e9 100644
--- a/accounts/manager.go
+++ b/accounts/manager.go
@@ -144,7 +144,7 @@ func (am *Manager) Wallets() []Wallet {
 	return am.walletsNoLock()
 }
 
-// Wallets without lock.
+// walletsNoLock returns all registered wallets. Callers must hold am.lock.
 func (am *Manager) walletsNoLock() []Wallet {
 	cpy := make([]Wallet, len(am.wallets))
 	copy(cpy, am.wallets)