diff --git a/setup.py b/setup.py
index f7301df..620576b 100755
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ else:
 
 setup(
     name='trezor',
-    version='0.7.4',
+    version='0.7.5',
     author='Bitcoin TREZOR',
     author_email='info@bitcointrezor.com',
     description='Python library for communicating with TREZOR Bitcoin Hardware Wallet',
diff --git a/tests/.gitignore b/tests/.gitignore
index f47cb20..b46fb42 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -1 +1,2 @@
 *.out
+*.err
diff --git a/tests/test_msg_verifymessage.py b/tests/test_msg_verifymessage.py
index 7bb81e1..fcbd329 100644
--- a/tests/test_msg_verifymessage.py
+++ b/tests/test_msg_verifymessage.py
@@ -9,7 +9,9 @@ class TestMsgVerifymessage(common.TrezorTest):
 
     def test_message_long(self):
         self.setup_mnemonic_nopin_nopassphrase()
-        ret = self.client.verify_message('1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T',
+        ret = self.client.verify_message(
+            'Bitcoin',
+            '1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T',
             binascii.unhexlify('1bddc0aed9cf4e10dc9f57770934f4fb72a27c4510a0f4a81e09c163552416f799cd3f211ffeed0f411e9af9b927407d67115fb6d0ab1897137048efe33417fcc1'),
             "VeryLongMessage!" * 64
         )
@@ -18,7 +20,11 @@ class TestMsgVerifymessage(common.TrezorTest):
     def test_message_testnet(self):
         self.setup_mnemonic_nopin_nopassphrase()
         sig = base64.b64decode('IFP/nvQalDo9lWCI7kScOzRkz/fiiScdkw7tFAKPoGbl6S8AY3wEws43s2gR57AfwZP8/8y7+F+wvGK9phQghN4=')
-        ret = self.client.verify_message('moRDikgmxcpouFtqnKnVVzLYgkDD2gQ3sk', sig, 'Ahoj')
+        ret = self.client.verify_message(
+            'Testnet',
+            'moRDikgmxcpouFtqnKnVVzLYgkDD2gQ3sk',
+            sig,
+            'Ahoj')
         self.assertTrue(ret)
 
     def test_message_verify(self):
@@ -26,6 +32,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # uncompressed pubkey - OK
         res = self.client.verify_message(
+            'Bitcoin',
             '1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T',
             binascii.unhexlify('1ba77e01a9e17ba158b962cfef5f13dfed676ffc2b4bada24e58f784458b52b97421470d001d53d5880cf5e10e76f02be3e80bf21e18398cbd41e8c3b4af74c8c2'),
             'This is an example of a signed message.'
@@ -34,6 +41,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # uncompressed pubkey - FAIL - wrong sig
         res = self.client.verify_message(
+            'Bitcoin',
             '1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T',
             binascii.unhexlify('1ba77e01a9e17ba158b96200000000dfed676ffc2b4bada24e58f784458b52b97421470d001d53d5880cf5e10e76f02be3e80bf21e18398cbd41e8c3b4af74c8c2'),
             'This is an example of a signed message.'
@@ -42,6 +50,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # uncompressed pubkey - FAIL - wrong msg
         res = self.client.verify_message(
+            'Bitcoin',
             '1JwSSubhmg6iPtRjtyqhUYYH7bZg3Lfy1T',
             binascii.unhexlify('1ba77e01a9e17ba158b962cfef5f13dfed676ffc2b4bada24e58f784458b52b97421470d001d53d5880cf5e10e76f02be3e80bf21e18398cbd41e8c3b4af74c8c2'),
             'This is an example of a signed message!'
@@ -50,6 +59,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # compressed pubkey - OK
         res = self.client.verify_message(
+            'Bitcoin',
             '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8',
             binascii.unhexlify('1f44e3e461f7ca9f57c472ce1a28214df1de1dadefb6551a32d1907b80c74d5a1fbfd6daaba12dd8cb06699ce3f6941fbe0f3957b5802d13076181046e741eaaaf'),
             'This is an example of a signed message.')
@@ -57,6 +67,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # compressed pubkey - FAIL - wrong sig
         res = self.client.verify_message(
+            'Bitcoin',
             '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8',
             binascii.unhexlify('1f44e3e461f7ca9f57c472000000004df1de1dadefb6551a32d1907b80c74d5a1fbfd6daaba12dd8cb06699ce3f6941fbe0f3957b5802d13076181046e741eaaaf'),
             'This is an example of a signed message.'
@@ -65,6 +76,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # compressed pubkey - FAIL - wrong msg
         res = self.client.verify_message(
+            'Bitcoin',
             '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8',
             binascii.unhexlify('1f44e3e461f7ca9f57c472ce1a28214df1de1dadefb6551a32d1907b80c74d5a1fbfd6daaba12dd8cb06699ce3f6941fbe0f3957b5802d13076181046e741eaaaf'),
             'This is an example of a signed message!')
@@ -72,6 +84,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # trezor pubkey - OK
         res = self.client.verify_message(
+            'Bitcoin',
             '14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e',
             binascii.unhexlify('209e23edf0e4e47ff1dec27f32cd78c50e74ef018ee8a6adf35ae17c7a9b0dd96f48b493fd7dbab03efb6f439c6383c9523b3bbc5f1a7d158a6af90ab154e9be80'),
             'This is an example of a signed message.'
@@ -80,6 +93,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # trezor pubkey - FAIL - wrong sig
         res = self.client.verify_message(
+            'Bitcoin',
             '14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e',
             binascii.unhexlify('209e23edf0e4e47ff1de000002cd78c50e74ef018ee8a6adf35ae17c7a9b0dd96f48b493fd7dbab03efb6f439c6383c9523b3bbc5f1a7d158a6af90ab154e9be80'),
             'This is an example of a signed message.'
@@ -88,6 +102,7 @@ class TestMsgVerifymessage(common.TrezorTest):
 
         # trezor pubkey - FAIL - wrong msg
         res = self.client.verify_message(
+            'Bitcoin',
             '14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e',
             binascii.unhexlify('209e23edf0e4e47ff1dec27f32cd78c50e74ef018ee8a6adf35ae17c7a9b0dd96f48b493fd7dbab03efb6f439c6383c9523b3bbc5f1a7d158a6af90ab154e9be80'),
             'This is an example of a signed message!'
@@ -99,6 +114,7 @@ class TestMsgVerifymessage(common.TrezorTest):
         self.setup_mnemonic_nopin_nopassphrase()
 
         res = self.client.verify_message(
+            'Bitcoin',
             '1KzXE97kV7DrpxCViCN3HbGbiKhzzPM7TQ',
             binascii.unhexlify('1cc694f0f23901dfe3603789142f36a3fc582d0d5c0ec7215cf2ccd641e4e37228504f3d4dc3eea28bbdbf5da27c49d4635c097004d9f228750ccd836a8e1460c0'),
             u'\u017elu\u0165ou\u010dk\xfd k\u016f\u0148 \xfap\u011bl \u010f\xe1belsk\xe9 \xf3dy'
@@ -113,12 +129,14 @@ class TestMsgVerifymessage(common.TrezorTest):
         words_nfc = u'P\u0159\xed\u0161ern\u011b \u017elu\u0165ou\u010dk\xfd k\u016f\u0148 \xfap\u011bl \u010f\xe1belsk\xe9 \xf3dy z\xe1ke\u0159n\xfd u\u010de\u0148 b\u011b\u017e\xed pod\xe9l z\xf3ny \xfal\u016f'
 
         res_nfkd = self.client.verify_message(
+            'Bitcoin',
             '14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e',
             binascii.unhexlify('1fd0ec02ed8da8df23e7fe9e680e7867cc290312fe1c970749d8306ddad1a1eda4e39588e4ec2b6a22dda4ec4f562f06e91129eea9a844a7193812de82d47c496b'),
             words_nfkd
         )
 
         res_nfc = self.client.verify_message(
+            'Bitcoin',
             '14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e',
             binascii.unhexlify('1fd0ec02ed8da8df23e7fe9e680e7867cc290312fe1c970749d8306ddad1a1eda4e39588e4ec2b6a22dda4ec4f562f06e91129eea9a844a7193812de82d47c496b'),
             words_nfc
diff --git a/trezorctl b/trezorctl
index 269779b..63cc0ec 100755
--- a/trezorctl
+++ b/trezorctl
@@ -255,7 +255,7 @@ class Commands(object):
 
     def verify_message(self, args):
         signature = base64.b64decode(args.signature)
-        return self.client.verify_message(args.address, signature, args.message)
+        return self.client.verify_message(args.coin, args.address, signature, args.message)
 
     def encrypt_message(self, args):
         pubkey = binascii.unhexlify(args.pubkey)
@@ -442,6 +442,7 @@ class Commands(object):
     )
 
     verify_message.arguments = (
+        (('-c', '--coin'), {'type': str, 'default': 'Bitcoin'}),
         (('address',), {'type': str}),
         (('signature',), {'type': str}),
         (('message',), {'type': str}),
diff --git a/trezorlib/client.py b/trezorlib/client.py
index cb614ec..5053d5b 100644
--- a/trezorlib/client.py
+++ b/trezorlib/client.py
@@ -526,14 +526,11 @@ class ProtocolMixin(object):
         ret = self.call(proto.SetU2FCounter(u2f_counter = u2f_counter))
         return ret
 
-    def verify_message(self, address, signature, message):
+    def verify_message(self, coin_name, address, signature, message):
         # Convert message to UTF8 NFC (seems to be a bitcoin-qt standard)
         message = normalize_nfc(message).encode("utf-8")
         try:
-            if address:
-                resp = self.call(proto.VerifyMessage(address=address, signature=signature, message=message))
-            else:
-                resp = self.call(proto.VerifyMessage(signature=signature, message=message))
+            resp = self.call(proto.VerifyMessage(address=address, signature=signature, message=message, coin_name=coin_name))
         except CallException as e:
             resp = e
         if isinstance(resp, proto.Success):