diff --git a/electrum/plugins/trezor/clientbase.py b/electrum/plugins/trezor/clientbase.py
index e31abaa1e..3ec43d5ca 100644
--- a/electrum/plugins/trezor/clientbase.py
+++ b/electrum/plugins/trezor/clientbase.py
@@ -65,7 +65,7 @@ class TrezorClientBase(PrintError):
             if issubclass(exc_type, Cancelled):
                 raise UserCancelled from exc_value
             elif issubclass(exc_type, TrezorFailure):
-                raise RuntimeError(exc_value.message) from exc_value
+                raise RuntimeError(str(exc_value)) from exc_value
             elif issubclass(exc_type, OutdatedFirmwareError):
                 raise UserFacingException(exc_value) from exc_value
             else: