diff --git a/hwilib/devices/coldcard.py b/hwilib/devices/coldcard.py
index 3b8a8f2..fa52694 100644
--- a/hwilib/devices/coldcard.py
+++ b/hwilib/devices/coldcard.py
@@ -74,6 +74,8 @@ class ColdcardClient(HardwareWalletClient):
         # start the signing process
         ok = self.device.send_recv(CCProtocolPacker.sign_transaction(sz, expect), timeout=None)
         assert ok == None
+        if self.device.is_simulator:
+            self.device.send_recv(CCProtocolPacker.sim_keypress(b'y'))
 
         print("Waiting for OK on the Coldcard...")
 
@@ -102,6 +104,8 @@ class ColdcardClient(HardwareWalletClient):
         try:
             ok = self.device.send_recv(CCProtocolPacker.sign_message(message.encode(), keypath, AF_CLASSIC), timeout=None)
             assert ok == None
+            if self.device.is_simulator:
+                self.device.send_recv(CCProtocolPacker.sim_keypress(b'y'))
         except CCProtoError as e:
             raise ValueError(str(e))
 
@@ -134,6 +138,8 @@ class ColdcardClient(HardwareWalletClient):
         else:
             format = AF_CLASSIC
         address = self.device.send_recv(CCProtocolPacker.show_address(keypath, format), timeout=None)
+        if self.device.is_simulator:
+            self.device.send_recv(CCProtocolPacker.sim_keypress(b'y'))
         return {'address': address}
 
     # Setup a new device
diff --git a/test/test_coldcard.py b/test/test_coldcard.py
index 38b0202..32ec75f 100755
--- a/test/test_coldcard.py
+++ b/test/test_coldcard.py
@@ -50,9 +50,7 @@ def coldcard_test_suite(simulator, rpc, userpass):
     suite.addTest(DeviceTestCase.parameterize(TestGetKeypool, rpc, userpass, 'coldcard', '/tmp/ckcc-simulator.sock', '0f056943', 'tpubDDpWvmUrPZrhSPmUzCMBHffvC3HyMAPnWDSAQNBTnj1iZeJa7BZQEttFiP4DS4GCcXQHezdXhn86Hj6LHX5EDstXPWrMaSneRWM8yUf6NFd'))
     suite.addTest(DeviceTestCase.parameterize(TestDisplayAddress, rpc, userpass, 'coldcard', '/tmp/ckcc-simulator.sock', '0f056943', 'tpubDDpWvmUrPZrhSPmUzCMBHffvC3HyMAPnWDSAQNBTnj1iZeJa7BZQEttFiP4DS4GCcXQHezdXhn86Hj6LHX5EDstXPWrMaSneRWM8yUf6NFd'))
     suite.addTest(DeviceTestCase.parameterize(TestSignMessage, rpc, userpass, 'coldcard', '/tmp/ckcc-simulator.sock', '0f056943', 'tpubDDpWvmUrPZrhSPmUzCMBHffvC3HyMAPnWDSAQNBTnj1iZeJa7BZQEttFiP4DS4GCcXQHezdXhn86Hj6LHX5EDstXPWrMaSneRWM8yUf6NFd'))
-    # HACK: Skip this in headless simulator because it requires user input
-    if not simulator.endswith('headless.py'):
-        suite.addTest(DeviceTestCase.parameterize(TestSignTx, rpc, userpass, 'coldcard', '/tmp/ckcc-simulator.sock', '0f056943', 'tpubDDpWvmUrPZrhSPmUzCMBHffvC3HyMAPnWDSAQNBTnj1iZeJa7BZQEttFiP4DS4GCcXQHezdXhn86Hj6LHX5EDstXPWrMaSneRWM8yUf6NFd'))
+    suite.addTest(DeviceTestCase.parameterize(TestSignTx, rpc, userpass, 'coldcard', '/tmp/ckcc-simulator.sock', '0f056943', 'tpubDDpWvmUrPZrhSPmUzCMBHffvC3HyMAPnWDSAQNBTnj1iZeJa7BZQEttFiP4DS4GCcXQHezdXhn86Hj6LHX5EDstXPWrMaSneRWM8yUf6NFd'))
     return suite
 
 if __name__ == '__main__':