diff --git a/accounts/usbwallet/trezor.go b/accounts/usbwallet/trezor.go
index 3b63a9f234..b64db3863f 100644
--- a/accounts/usbwallet/trezor.go
+++ b/accounts/usbwallet/trezor.go
@@ -86,7 +86,7 @@ func (w *trezorDriver) Status() (string, error) {
 // Open implements usbwallet.driver, attempting to initialize the connection to
 // the Trezor hardware wallet. Initializing the Trezor is a two or three phase operation:
 //   - The first phase is to initialize the connection and read the wallet's
-//     features. This phase is invoked is the provided passphrase is empty. The
+//     features. This phase is invoked if the provided passphrase is empty. The
 //     device will display the pinpad as a result and will return an appropriate
 //     error to notify the user that a second open phase is needed.
 //   - The second phase is to unlock access to the Trezor, which is done by the