diff --git a/trezorlib/tests/device_tests/test_debuglink.py b/trezorlib/tests/device_tests/test_debuglink.py
index deadfc183..4a91fdfaf 100644
--- a/trezorlib/tests/device_tests/test_debuglink.py
+++ b/trezorlib/tests/device_tests/test_debuglink.py
@@ -29,8 +29,8 @@ class TestDebuglink(TrezorTest):
 
     def test_mnemonic(self):
         self.setup_mnemonic_nopin_nopassphrase(lock=False)
-        mnemonic = self.client.debug.state().mnemonic
-        assert mnemonic == self.mnemonic12
+        mnemonic = self.client.debug.state().mnemonic_secret
+        assert mnemonic == self.mnemonic12.encode()
 
     def test_pin(self):
         self.setup_mnemonic_pin_passphrase()
diff --git a/trezorlib/tests/device_tests/test_msg_loaddevice.py b/trezorlib/tests/device_tests/test_msg_loaddevice.py
index e3e283972..ed178c146 100644
--- a/trezorlib/tests/device_tests/test_msg_loaddevice.py
+++ b/trezorlib/tests/device_tests/test_msg_loaddevice.py
@@ -26,7 +26,7 @@ class TestDeviceLoad(TrezorTest):
     def test_load_device_1(self):
         self.setup_mnemonic_nopin_nopassphrase(lock=False)
         state = self.client.debug.state()
-        assert state.mnemonic == self.mnemonic12
+        assert state.mnemonic_secret == self.mnemonic12.encode()
         assert state.pin is None
         assert state.passphrase_protection is False
 
@@ -37,7 +37,7 @@ class TestDeviceLoad(TrezorTest):
         self.setup_mnemonic_pin_passphrase(lock=False)
         self.client.set_passphrase("passphrase")
         state = self.client.debug.state()
-        assert state.mnemonic == self.mnemonic12
+        assert state.mnemonic_secret == self.mnemonic12.encode()
         assert state.pin == self.pin4
         assert state.passphrase_protection is True
 
diff --git a/trezorlib/tests/device_tests/test_msg_recoverydevice.py b/trezorlib/tests/device_tests/test_msg_recoverydevice.py
index c52a80624..342c238d1 100644
--- a/trezorlib/tests/device_tests/test_msg_recoverydevice.py
+++ b/trezorlib/tests/device_tests/test_msg_recoverydevice.py
@@ -75,7 +75,7 @@ class TestMsgRecoverydevice(TrezorTest):
 
         # Mnemonic is the same
         self.client.init_device()
-        assert self.client.debug.read_mnemonic() == self.mnemonic12
+        assert self.client.debug.read_mnemonic_secret() == self.mnemonic12.encode()
 
         assert self.client.features.pin_protection is True
         assert self.client.features.passphrase_protection is True
@@ -126,7 +126,7 @@ class TestMsgRecoverydevice(TrezorTest):
 
         # Mnemonic is the same
         self.client.init_device()
-        assert self.client.debug.read_mnemonic() == self.mnemonic12
+        assert self.client.debug.read_mnemonic_secret() == self.mnemonic12.encode()
 
         assert self.client.features.pin_protection is False
         assert self.client.features.passphrase_protection is False