diff --git a/qutebrowser/misc/ipc.py b/qutebrowser/misc/ipc.py
index 8a6ee0f65..6f60f7fbf 100644
--- a/qutebrowser/misc/ipc.py
+++ b/qutebrowser/misc/ipc.py
@@ -124,10 +124,12 @@ class IPCServer(QObject):
     Signals:
         got_args: Emitted when there was an IPC connection and arguments were
                   passed.
+        got_args: Emitted with the raw data an IPC connection got.
         got_invalid_data: Emitted when there was invalid incoming data.
     """
 
     got_args = pyqtSignal(list, str)
+    got_raw = pyqtSignal(bytes)
     got_invalid_data = pyqtSignal()
 
     def __init__(self, socketname, parent=None):
@@ -237,6 +239,7 @@ class IPCServer(QObject):
         self._timer.start()
         while self._socket is not None and self._socket.canReadLine():
             data = bytes(self._socket.readLine())
+            self.got_raw.emit(data)
             log.ipc.debug("Read from socket: {}".format(data))
             try:
                 decoded = data.decode('utf-8')
diff --git a/tests/unit/misc/test_ipc.py b/tests/unit/misc/test_ipc.py
index 20c03d9ff..be18d73df 100644
--- a/tests/unit/misc/test_ipc.py
+++ b/tests/unit/misc/test_ipc.py
@@ -22,6 +22,7 @@
 import getpass
 import collections
 import logging
+import json
 from unittest import mock
 
 import pytest
@@ -29,6 +30,7 @@ from PyQt5.QtCore import pyqtSignal, QObject
 from PyQt5.QtNetwork import QLocalServer, QLocalSocket, QAbstractSocket
 from PyQt5.QtTest import QSignalSpy
 
+import qutebrowser
 from qutebrowser.misc import ipc
 from qutebrowser.utils import objreg
 from helpers import stubs  # pylint: disable=import-error
@@ -373,6 +375,7 @@ class TestSendToRunningInstance:
     def test_normal(self, qtbot, tmpdir, ipc_server, mocker, has_cwd):
         ipc_server.listen()
         spy = QSignalSpy(ipc_server.got_args)
+        raw_spy = QSignalSpy(ipc_server.got_raw)
         error_spy = QSignalSpy(ipc_server.got_invalid_data)
 
         with qtbot.waitSignal(ipc_server.got_args, raising=True, timeout=5000):
@@ -384,11 +387,21 @@ class TestSendToRunningInstance:
                                                     ['foo'])
 
         assert sent
-        assert len(spy) == 1
+
         assert not error_spy
         expected_cwd = str(tmpdir) if has_cwd else ''
+
+        assert len(spy) == 1
         assert spy[0] == [['foo'], expected_cwd]
 
+        assert len(raw_spy) == 1
+        assert len(raw_spy[0]) == 1
+        raw_expected = {'args': ['foo'], 'version': qutebrowser.__version__}
+        if has_cwd:
+            raw_expected['cwd'] = str(tmpdir)
+        parsed = json.loads(raw_spy[0][0].decode('utf-8'))
+        assert parsed == raw_expected
+
     def test_socket_error(self):
         socket = FakeSocket(error=QLocalSocket.ConnectionError)
         with pytest.raises(ipc.Error) as excinfo: