diff --git a/swh/lister/phabricator/tasks.py b/swh/lister/phabricator/tasks.py
index ce37fa4..5ec794d 100644
--- a/swh/lister/phabricator/tasks.py
+++ b/swh/lister/phabricator/tasks.py
@@ -1,29 +1,23 @@
 # Copyright (C) 2019 the Software Heritage developers
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from swh.scheduler.celery_backend.config import app
 from swh.lister.phabricator.lister import PhabricatorLister
 
 
 def new_lister(forge_url='https://forge.softwareheritage.org', instance='swh',
                api_token=None, **kw):
     return PhabricatorLister(
         forge_url=forge_url, instance=instance, api_token=api_token, **kw)
 
 
-@app.task(name=__name__ + '.IncrementalPhabricatorLister')
-def incremental_phabricator_lister(**lister_args):
-    lister = new_lister(**lister_args)
-    lister.run(min_bound=lister.db_last_index())
-
-
 @app.task(name=__name__ + '.FullPhabricatorLister')
 def full_phabricator_lister(**lister_args):
     lister = new_lister(**lister_args)
     lister.run()
 
 
 @app.task(name=__name__ + '.ping')
 def ping():
     return 'OK'
diff --git a/swh/lister/phabricator/tests/test_tasks.py b/swh/lister/phabricator/tests/test_tasks.py
index 0aa27d6..7651c7d 100644
--- a/swh/lister/phabricator/tests/test_tasks.py
+++ b/swh/lister/phabricator/tests/test_tasks.py
@@ -1,30 +1,8 @@
-from unittest.mock import patch
-
 
 def test_ping(swh_app, celery_session_worker):
     res = swh_app.send_task(
         'swh.lister.phabricator.tasks.ping')
     assert res
     res.wait()
     assert res.successful()
     assert res.result == 'OK'
-
-
-@patch('swh.lister.phabricator.tasks.PhabricatorLister')
-def test_incremental(lister, swh_app, celery_session_worker):
-    # setup the mocked PhabricatorLister
-    lister.return_value = lister
-    lister.db_last_index.return_value = 42
-    lister.run.return_value = None
-
-    res = swh_app.send_task(
-        'swh.lister.phabricator.tasks.IncrementalPhabricatorLister')
-    assert res
-    res.wait()
-    assert res.successful()
-
-    lister.assert_called_once_with(
-        api_token=None, forge_url='https://forge.softwareheritage.org',
-        instance='swh')
-    lister.db_last_index.assert_called_once_with()
-    lister.run.assert_called_once_with(min_bound=42)