diff --git a/src/authentic2/api_views.py b/src/authentic2/api_views.py
index 9adebefe1..b3d9b3814 100644
--- a/src/authentic2/api_views.py
+++ b/src/authentic2/api_views.py
@@ -525,6 +525,7 @@ class BaseUserSerializer(serializers.ModelSerializer):
 
 class DuplicateUserSerializer(BaseUserSerializer):
     duplicate_distance = serializers.FloatField(required=True, source='dist')
+    text = serializers.CharField(required=True, source='get_full_name')
 
 
 class SlugFromNameDefault:
@@ -810,8 +811,9 @@ class UsersAPI(api_mixins.GetOrCreateMixinView, HookMixin, ExceptionHandlerMixin
         serializer = self.get_serializer(data=request.query_params, partial=True)
         if not serializer.is_valid():
             response = {
-                'results': [],
-                'errors': serializer.errors
+                'data': [],
+                'err': 1,
+                'err_desc': serializer.errors
             }
             return Response(response, status.HTTP_400_BAD_REQUEST)
         data = serializer.validated_data
@@ -820,8 +822,9 @@ class UsersAPI(api_mixins.GetOrCreateMixinView, HookMixin, ExceptionHandlerMixin
         last_name = data.get('last_name')
         if not (first_name and last_name):
             response = {
-                'results': [],
-                'errors': 'first_name and last_name parameters are mandatory.',
+                'data': [],
+                'err': 1,
+                'err_desc': 'first_name and last_name parameters are mandatory.',
             }
             return Response(response, status.HTTP_400_BAD_REQUEST)
 
@@ -830,7 +833,8 @@ class UsersAPI(api_mixins.GetOrCreateMixinView, HookMixin, ExceptionHandlerMixin
         qs = User.objects.find_duplicates(first_name, last_name, birthdate=birthdate)
 
         return Response({
-            'results': DuplicateUserSerializer(qs, many=True).data,
+            'data': DuplicateUserSerializer(qs, many=True).data,
+            'err': 0,
         })
 
 
diff --git a/tests/test_api.py b/tests/test_api.py
index 5c0916cc8..fdc73f4be 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -1854,23 +1854,24 @@ def test_find_duplicates(app, admin, settings):
         'last_name': last_name,
     }
     resp = app.get('/api/users/find_duplicates/', params=exact_match)
-    assert resp.json['results'][0]['id'] == user.id
-    assert resp.json['results'][0]['duplicate_distance'] == 0
+    assert resp.json['data'][0]['id'] == user.id
+    assert resp.json['data'][0]['duplicate_distance'] == 0
+    assert resp.json['data'][0]['text'] == 'Jean-Kévin Du Château'
 
     typo = {
         'first_name': 'Jean Kévin',
         'last_name': 'Du Châtau',
     }
     resp = app.get('/api/users/find_duplicates/', params=typo)
-    assert resp.json['results'][0]['id'] == user.id
-    assert resp.json['results'][0]['duplicate_distance'] > 0
+    assert resp.json['data'][0]['id'] == user.id
+    assert resp.json['data'][0]['duplicate_distance'] > 0
 
     typo = {
         'first_name': 'Jean Kévin',
         'last_name': 'Château',
     }
     resp = app.get('/api/users/find_duplicates/', params=typo)
-    assert resp.json['results'][0]['id'] == user.id
+    assert resp.json['data'][0]['id'] == user.id
 
     other_person = {
         'first_name': 'Jean-Kévin',
@@ -1878,14 +1879,14 @@ def test_find_duplicates(app, admin, settings):
     }
     user = User.objects.create(first_name='Éléonore', last_name='âêîôû')
     resp = app.get('/api/users/find_duplicates/', params=other_person)
-    assert len(resp.json['results']) == 0
+    assert len(resp.json['data']) == 0
 
     other_person = {
         'first_name': 'Pierre',
         'last_name': 'Du Château',
     }
     resp = app.get('/api/users/find_duplicates/', params=other_person)
-    assert len(resp.json['results']) == 0
+    assert len(resp.json['data']) == 0
 
 
 def test_find_duplicates_unaccent(app, admin, settings):
@@ -1895,7 +1896,7 @@ def test_find_duplicates_unaccent(app, admin, settings):
     user = User.objects.create(first_name='Éléonore', last_name='âêîôû')
 
     resp = app.get('/api/users/find_duplicates/', params={'first_name': 'Eleonore', 'last_name': 'aeiou'})
-    assert resp.json['results'][0]['id'] == user.id
+    assert resp.json['data'][0]['id'] == user.id
 
 
 def test_find_duplicates_birthdate(app, admin, settings):
@@ -1914,14 +1915,14 @@ def test_find_duplicates_birthdate(app, admin, settings):
         'last_name': 'Dupont',
     }
     resp = app.get('/api/users/find_duplicates/', params=params)
-    assert len(resp.json['results']) == 2
+    assert len(resp.json['data']) == 2
 
     params['birthdate'] = '1980-01-2',
     resp = app.get('/api/users/find_duplicates/', params=params)
-    assert len(resp.json['results']) == 2
-    assert resp.json['results'][0]['id'] == user.pk
+    assert len(resp.json['data']) == 2
+    assert resp.json['data'][0]['id'] == user.pk
 
     params['birthdate'] = '1980-01-3',
     resp = app.get('/api/users/find_duplicates/', params=params)
-    assert len(resp.json['results']) == 2
-    assert resp.json['results'][0]['id'] == homonym.pk
+    assert len(resp.json['data']) == 2
+    assert resp.json['data'][0]['id'] == homonym.pk
diff --git a/tests/test_large_userbase.py b/tests/test_large_userbase.py
index 2010112bc..d20634563 100644
--- a/tests/test_large_userbase.py
+++ b/tests/test_large_userbase.py
@@ -75,7 +75,7 @@ def test_large_userbase_find_duplicates(large_userbase, app, admin):
 
     for i in range(100):
         resp = app.get('/api/users/find_duplicates/', params=params)
-        assert len(resp.json['results']) >= 1
+        assert len(resp.json['data']) >= 1
 
 
 def test_large_userbase_find_duplicates_with_birthdate(large_userbase, app, admin):
@@ -90,4 +90,4 @@ def test_large_userbase_find_duplicates_with_birthdate(large_userbase, app, admi
 
     for i in range(100):
         resp = app.get('/api/users/find_duplicates/', params=params)
-        assert len(resp.json['results']) >= 1
+        assert len(resp.json['data']) >= 1