diff --git a/mmgen/cfg.py b/mmgen/cfg.py
index ef4a5d60..a135eb85 100755
--- a/mmgen/cfg.py
+++ b/mmgen/cfg.py
@@ -78,7 +78,7 @@ class GlobalConstants(Lockable):
 		'txcreate':     _cc(True,  True,  True,  None,    ['tw'],  'lmw'),
 		'txdo':         _cc(True,  True,  True,  None,    ['tw'],  'lmw'),
 		'txsend':       _cc(True,  True,  True,  None,    ['tw'],  'lmw'),
-		'txsign':       _cc(True,  True,  True,  None,    ['tw'],  'lmw'),
+		'txsign':       _cc(True,  True,  False, '-rRb',  ['tw'],  'lmw'),
 		'walletchk':    _cc(False, False, False, None,    [],      'lmw'),
 		'walletconv':   _cc(False, False, False, None,    [],      'lmw'),
 		'walletgen':    _cc(False, False, False, None,    [],      'lmw'),
diff --git a/test/cmdtest_d/ct_ethdev.py b/test/cmdtest_d/ct_ethdev.py
index 0cfb8d0c..68962129 100755
--- a/test/cmdtest_d/ct_ethdev.py
+++ b/test/cmdtest_d/ct_ethdev.py
@@ -716,12 +716,12 @@ class CmdTestEthdev(CmdTestBase, CmdTestShared):
 		t = self.spawn(
 			'mmgen-txsign',
 				self.eth_args
-				+ [f'--coin={self.proto.coin}']
 				+ ['--rpc-host=bad_host'] # ETH signing must work without RPC
 				+ ([], ['--yes'])[ni]
 				+ ([f'--keys-from-file={keyfile}'] if dev_send else [])
 				+ add_args
-				+ [txfile, dfl_words_file])
+				+ [txfile, dfl_words_file],
+			no_passthru_opts = ['coin'])
 		return self.txsign_ui_common(t, ni=ni, has_label=True)
 
 	def txsend(self, ext='{}.regtest.sigtx', add_args=[], test=False):
@@ -1070,7 +1070,9 @@ class CmdTestEthdev(CmdTestBase, CmdTestShared):
 			t.written_to_file('transaction')
 			ext = '[0,8000]{}.regtest.rawtx'.format('-α' if cfg.debug_utf8 else '')
 			txfile = self.get_file_with_ext(ext, no_dot=True)
-			t = self.spawn('mmgen-txsign', self.eth_args + ['--yes', '-k', keyfile, txfile], no_msg=True)
+			t = self.spawn(
+				'mmgen-txsign',
+				self.eth_args + ['--yes', '-k', keyfile, txfile], no_msg=True, no_passthru_opts=['coin'])
 			self.txsign_ui_common(t, ni=True)
 			txfile = txfile.replace('.rawtx', '.sigtx')
 			t = self.spawn('mmgen-txsend', self.eth_args + [txfile], no_msg=True)
@@ -1237,7 +1239,7 @@ class CmdTestEthdev(CmdTestBase, CmdTestShared):
 			add_comment       = tx_comment_lat_cyr_gr,
 			file_desc         = file_desc)
 	def token_txsign(self, ext='', token='', add_args=[], ni=True):
-		return self.txsign(ni=ni, ext=ext, add_args=[f'--token={token}'] + add_args)
+		return self.txsign(ni=ni, ext=ext, add_args=add_args)
 	def token_txsend(self, ext='', token=''):
 		return self.txsend(ext=ext, add_args=['--token='+token])
 
diff --git a/test/cmdtest_d/ct_main.py b/test/cmdtest_d/ct_main.py
index 292a134b..b28584c5 100755
--- a/test/cmdtest_d/ct_main.py
+++ b/test/cmdtest_d/ct_main.py
@@ -931,7 +931,8 @@ class CmdTestMain(CmdTestBase, CmdTestShared):
 			args=['-H', f'{rf},{hincog_offset}', '-l', str(hincog_seedlen)])
 
 	def txsign_keyaddr(self, keyaddr_file, txfile):
-		t = self.spawn('mmgen-txsign', ['-d', self.tmpdir, '-p1', '-M', keyaddr_file, txfile])
+		t = self.spawn('mmgen-txsign',
+			['-d', self.tmpdir, '-p1', '-M', keyaddr_file, txfile], no_passthru_opts=['coin'])
 		t.license()
 		t.view_tx('n')
 		t.do_decrypt_ka_data(pw=self.kapasswd)
@@ -951,7 +952,8 @@ class CmdTestMain(CmdTestBase, CmdTestShared):
 		return self.txcreate_common(sources=['2'])
 
 	def txsign2(self, wf1, txf1, wf2, txf2):
-		t = self.spawn('mmgen-txsign', ['-d', self.tmpdir, txf1, wf1, txf2, wf2])
+		t = self.spawn('mmgen-txsign',
+			['-d', self.tmpdir, txf1, wf1, txf2, wf2], no_passthru_opts=['coin'])
 		t.license()
 		for cnum, wf in (('1', wf1), ('2', wf2)):
 			wcls = get_wallet_cls(ext=get_extension(wf))
@@ -973,7 +975,7 @@ class CmdTestMain(CmdTestBase, CmdTestShared):
 		return self.txcreate_common(sources=['1', '3'])
 
 	def txsign3(self, wf1, wf2, txf2):
-		t = self.spawn('mmgen-txsign', ['-d', self.tmpdir, wf1, wf2, txf2])
+		t = self.spawn('mmgen-txsign', ['-d', self.tmpdir, wf1, wf2, txf2], no_passthru_opts=['coin'])
 		t.license()
 		t.view_tx('n')
 		for cnum, wf in (('1', wf1), ('3', wf2)):
@@ -1021,7 +1023,7 @@ class CmdTestMain(CmdTestBase, CmdTestShared):
 			'--keys-from-file=' + non_mm_file,
 			'--mmgen-keys-from-file=' + f6,
 			f1, f2, f3, f4, f5]
-		t = self.spawn('mmgen-txsign', add_args)
+		t = self.spawn('mmgen-txsign', add_args, no_passthru_opts=['coin'])
 		t.license()
 		t.view_tx('t')
 		t.do_decrypt_ka_data(pw=self.cfgs['14']['kapasswd'])
@@ -1084,6 +1086,7 @@ class CmdTestMain(CmdTestBase, CmdTestShared):
 		t = self.spawn(
 			'mmgen-txsign',
 			add_args + ['-d', self.tmpdir, '-k', non_mm_file, txf, wf],
+			no_passthru_opts = ['coin'],
 			exit_val = 2 if bad_vsize else None)
 		t.license()
 		t.view_tx('n')
diff --git a/test/cmdtest_d/ct_regtest.py b/test/cmdtest_d/ct_regtest.py
index 82fe606a..9f0e57cb 100755
--- a/test/cmdtest_d/ct_regtest.py
+++ b/test/cmdtest_d/ct_regtest.py
@@ -907,7 +907,8 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 
 	def bob_subwallet_txsign(self):
 		fn = get_file_with_ext(self.tmpdir, 'rawtx')
-		t = self.spawn('mmgen-txsign', ['-d', self.tmpdir, '--bob', '--subseeds=127', fn])
+		t = self.spawn('mmgen-txsign',
+			['-d', self.tmpdir, '--bob', '--subseeds=127', fn], no_passthru_opts=['coin'])
 		t.view_tx('t')
 		t.passphrase(dfl_wcls.desc, rt_pw)
 		t.do_comment(None)
@@ -2217,7 +2218,8 @@ class CmdTestRegtest(CmdTestBase, CmdTestShared):
 	def bob_dump_hex_sign(self):
 		txfile = get_file_with_ext(self.dump_hex_subdir, 'rawtx')
 		return self.txsign_ui_common(
-			self.spawn('mmgen-txsign', ['-d', self.dump_hex_subdir, '--bob', txfile]),
+			self.spawn('mmgen-txsign',
+				['-d', self.dump_hex_subdir, '--bob', txfile], no_passthru_opts=['coin']),
 			do_passwd = True,
 			passwd    = rt_pw)
 
diff --git a/test/cmdtest_d/ct_shared.py b/test/cmdtest_d/ct_shared.py
index fb652be6..49e502ad 100755
--- a/test/cmdtest_d/ct_shared.py
+++ b/test/cmdtest_d/ct_shared.py
@@ -215,6 +215,7 @@ class CmdTestShared:
 			'mmgen-txsign',
 			opts,
 			extra_desc,
+			no_passthru_opts = ['coin'],
 			exit_val = None if save or (wcls.enc and wcls.type != 'brain') else 1)
 		t.license()
 		t.view_tx(view)