diff --git a/plugins/trezor/plugin.py b/plugins/trezor/plugin.py
index 27fc6568..83389104 100644
--- a/plugins/trezor/plugin.py
+++ b/plugins/trezor/plugin.py
@@ -106,15 +106,19 @@ class TrezorCompatiblePlugin(HW_PluginBase):
             pair = [device.path, None]
 
         try:
-            return self.HidTransport(pair)
+            from trezorlib.transport_hid import HidTransport
+            return HidTransport(pair)
         except BaseException as e:
+            raise
             self.print_error("cannot connect at", device.path, str(e))
             return None
  
     def _try_bridge(self, device):
         self.print_error("Trying to connect over Trezor Bridge...")
+
         try:
-            return self.BridgeTransport({'path': hexlify(device.path)})
+            from trezorlib.transport_bridge import BridgeTransport
+            return BridgeTransport({'path': hexlify(device.path)})
         except BaseException as e:
             self.print_error("cannot connect to bridge", str(e))
             return None
diff --git a/plugins/trezor/trezor.py b/plugins/trezor/trezor.py
index d1bb19d3..18a7066a 100644
--- a/plugins/trezor/trezor.py
+++ b/plugins/trezor/trezor.py
@@ -15,8 +15,7 @@ class TrezorPlugin(TrezorCompatiblePlugin):
         from .client import TrezorClient as client_class
         import trezorlib.ckd_public as ckd_public
         from trezorlib.client import types
-        from trezorlib.transport_hid import HidTransport, DEVICE_IDS
-        from trezorlib.transport_bridge import BridgeTransport
+        from trezorlib.transport_hid import DEVICE_IDS
         libraries_available = True
     except ImportError:
         libraries_available = False