diff --git a/accounts/usbwallet/wallet.go b/accounts/usbwallet/wallet.go
index 8583129d55..ee539d9653 100644
--- a/accounts/usbwallet/wallet.go
+++ b/accounts/usbwallet/wallet.go
@@ -479,6 +479,7 @@ func (w *wallet) Derive(path accounts.DerivationPath, pin bool) (accounts.Accoun
 
 	if _, ok := w.paths[address]; !ok {
 		w.accounts = append(w.accounts, account)
+		w.paths[address] = make(accounts.DerivationPath, len(path))
 		copy(w.paths[address], path)
 	}
 	return account, nil