diff --git a/swh/web/common/converters.py b/swh/web/common/converters.py
--- a/swh/web/common/converters.py
+++ b/swh/web/common/converters.py
@@ -200,8 +200,7 @@
     """Convert from an SWH origin to an origin dictionary.
 
     """
-    return from_swh(origin,
-                    removables_if_empty={'lister', 'project'})
+    return from_swh(origin)
 
 
 def from_release(release):
diff --git a/swh/web/tests/api/views/test_origin.py b/swh/web/tests/api/views/test_origin.py
--- a/swh/web/tests/api/views/test_origin.py
+++ b/swh/web/tests/api/views/test_origin.py
@@ -25,8 +25,6 @@
 
         self.origin1 = {
             'id': 1234,
-            'lister': 'uuid-lister-0',
-            'project': 'uuid-project-0',
             'url': 'ftp://some/url/to/origin/0',
             'type': 'ftp'
         }
diff --git a/swh/web/tests/common/test_converters.py b/swh/web/tests/common/test_converters.py
--- a/swh/web/tests/common/test_converters.py
+++ b/swh/web/tests/common/test_converters.py
@@ -211,8 +211,6 @@
             'id': 9,
             'type': 'ftp',
             'url': 'rsync://ftp.gnu.org/gnu/octave',
-            'project': None,
-            'lister': None,
         }
 
         expected_origin = {
diff --git a/swh/web/tests/common/test_service.py b/swh/web/tests/common/test_service.py
--- a/swh/web/tests/common/test_service.py
+++ b/swh/web/tests/common/test_service.py
@@ -700,8 +700,6 @@
         # given
         mock_storage.origin_get = MagicMock(return_value={
             'id': 'origin-id',
-            'lister': 'uuid-lister',
-            'project': 'uuid-project',
             'url': 'ftp://some/url/to/origin',
             'type': 'ftp'})
 
@@ -710,8 +708,6 @@
 
         # then
         self.assertEqual(actual_origin, {'id': 'origin-id',
-                                         'lister': 'uuid-lister',
-                                         'project': 'uuid-project',
                                          'url': 'ftp://some/url/to/origin',
                                          'type': 'ftp'})