diff --git a/core/src/zeit/connector/testing.py b/core/src/zeit/connector/testing.py
index f9d3e34022..8978ccf5b5 100644
--- a/core/src/zeit/connector/testing.py
+++ b/core/src/zeit/connector/testing.py
@@ -9,7 +9,6 @@
 from sqlalchemy.exc import OperationalError
 import docker
 import plone.testing
-import pytest
 import requests
 import sqlalchemy
 import transaction
@@ -320,7 +319,6 @@ def get_resource(self, name, body=b'', properties=None, contentType='text/plain'
         )
 
 
-@pytest.mark.slow()
 class ConnectorTest(TestCase):
     layer = REAL_CONNECTOR_LAYER
     level = 2
@@ -343,14 +341,6 @@ def FunctionalDocFileSuite(*paths, **kw):
     return zeit.cms.testing.FunctionalDocFileSuite(*paths, **kw)
 
 
-def mark_doctest_suite(suite, mark):
-    # Imitate pytest magic, see _pytest.python.transfer_markers
-    for test in suite:
-        func = test.runTest.__func__
-        mark(func)
-        test.runTest = func.__get__(test)
-
-
 def print_tree(connector, base):
     """Helper to print a tree."""
     print('\n'.join(list_tree(connector, base)))
diff --git a/core/src/zeit/connector/tests/test_doctest.py b/core/src/zeit/connector/tests/test_doctest.py
index d9754aaeaf..d42e76ef03 100755
--- a/core/src/zeit/connector/tests/test_doctest.py
+++ b/core/src/zeit/connector/tests/test_doctest.py
@@ -1,7 +1,5 @@
 import unittest
 
-import pytest
-
 import zeit.cms.testing
 import zeit.connector.connector
 import zeit.connector.testing
@@ -23,7 +21,6 @@ def test_suite():
         'invalidation-events.txt',
         layer=zeit.connector.testing.ZOPE_CONNECTOR_LAYER,
     )
-    zeit.connector.testing.mark_doctest_suite(functional, pytest.mark.slow)
     suite.addTest(functional)
 
     suite.addTest(zeit.cms.testing.DocFileSuite('search.txt', package='zeit.connector'))
diff --git a/core/src/zeit/connector/tests/test_doctest2.py b/core/src/zeit/connector/tests/test_doctest2.py
index 6d3200a05e..d7d96bbaff 100644
--- a/core/src/zeit/connector/tests/test_doctest2.py
+++ b/core/src/zeit/connector/tests/test_doctest2.py
@@ -1,5 +1,3 @@
-import pytest
-
 import zeit.cms.testing
 import zeit.connector.connector
 import zeit.connector.testing
@@ -8,7 +6,7 @@
 def test_suite():
     # Need to put this into a separate file, otherwise gocept.pytestlayers
     # does not tear down other layers before running this.
-    suite = zeit.connector.testing.FunctionalDocFileSuite(
+    return zeit.connector.testing.FunctionalDocFileSuite(
         'locking.txt',
         'resource.txt',
         'search-ft.txt',
@@ -17,5 +15,3 @@ def test_suite():
         # 'stressing.txt',
         layer=zeit.connector.testing.REAL_CONNECTOR_LAYER,
     )
-    zeit.connector.testing.mark_doctest_suite(suite, pytest.mark.slow)
-    return suite
diff --git a/core/src/zeit/pytest.py b/core/src/zeit/pytest.py
index 0806d3ca87..867a1be0c6 100644
--- a/core/src/zeit/pytest.py
+++ b/core/src/zeit/pytest.py
@@ -18,9 +18,4 @@ def pytest_configure(config):
     config.addinivalue_line(
         'markers', 'integration: Thirdparty integration tests are not run by default.'
     )
-    config.addinivalue_line(
-        'markers',
-        'slow: This is a non-unit test and thus is not run by '
-        'default. Use ``-m slow`` to run these, or ``-m 1`` to run all tests.',
-    )
     config.addinivalue_line('markers', 'selenium: Selenium tests are not run by default.')