diff --git a/djangoldp/serializers.py b/djangoldp/serializers.py
index a3dbe8b061caab1615c01556e31872f3a9b4321c..291ae714efebd01e0d26976d693e9de7dea2b282 100644
--- a/djangoldp/serializers.py
+++ b/djangoldp/serializers.py
@@ -60,7 +60,7 @@ class LDListMixin:
                     object_list))
             else:
                 container_id = Model.container_id(self.parent.instance)
-                obj = next(filter(lambda o: container_id in o[self.parent.url_field_name], object_list))
+                obj = next(filter(lambda o: container_id.lstrip('/') in o[self.parent.url_field_name], object_list))
             list = super().get_value(obj)
             try:
                 list = next(
@@ -256,7 +256,7 @@ class LDPSerializer(HyperlinkedModelSerializer):
                         return super().get_value(obj)
                     else:
                         resource_id = Model.resource_id(self.parent.instance)
-                        obj = next(filter(lambda o: resource_id in o[self.parent.url_field_name], object_list))
+                        obj = next(filter(lambda o: resource_id.lstrip('/') in o[self.parent.url_field_name], object_list))
                         return super().get_value(obj)
                 except KeyError:
                     return super().get_value(dictionary)
diff --git a/djangoldp/tests/models.py b/djangoldp/tests/models.py
index aac98626b90379690b925b5edcd52ddbb303c218..468377c8d7f2c07cce69f468c039967b423e14b4 100644
--- a/djangoldp/tests/models.py
+++ b/djangoldp/tests/models.py
@@ -1,4 +1,5 @@
 from django.conf import settings
+from django.contrib.auth import get_user_model
 from django.db import models
 
 from djangoldp.models import Model
@@ -78,3 +79,6 @@ class Post(Model):
 
     class Meta:
         auto_author = 'author'
+
+
+get_user_model()._meta.serializer_fields = ['@id', 'username', 'first_name', 'last_name', 'email', 'conversation_set']
diff --git a/djangoldp/tests/tests_update.py b/djangoldp/tests/tests_update.py
index c94facfe799e8b0d87cda7b30dceb6e878ae4538..41f10a9089c5b2f3f92d0578f3b785d12873194a 100644
--- a/djangoldp/tests/tests_update.py
+++ b/djangoldp/tests/tests_update.py
@@ -266,7 +266,28 @@ class Update(TestCase):
         body = [{
             '@id': '/posts/{}/'.format(post.pk),
             'http://happy-dev.fr/owl/#content': "post content"}]
-        response = self.client.put('/posts/{}/'.format(post.pk), data=json.dumps(body), content_type='application/ld+json')
+        response = self.client.put('/posts/{}/'.format(post.pk), data=json.dumps(body),
+                                   content_type='application/ld+json')
         self.assertEqual(response.status_code, 200)
         self.assertEquals(response.data['content'], "post content")
         self.assertIn('location', response._headers)
+
+    def test_create_sub_object_in_existing_object_with_reverse_relation(self):
+        user = User.objects.create(username="alex", password="test")
+        body = [
+            {
+                '@id': "_:b975",
+                'http://happy-dev.fr/owl/#description': "conversation description"
+            },
+            {
+                '@id': '/users/{}/'.format(user.pk),
+                "http://happy-dev.fr/owl/#first_name": "Alexandre",
+                "http://happy-dev.fr/owl/#last_name": "Bourlier",
+                "http://happy-dev.fr/owl/#username": "alex",
+                'http://happy-dev.fr/owl/#conversation_set': {'@id': "_:b975"}
+            }
+        ]
+        response = self.client.put('/users/{}/'.format(user.pk), data=json.dumps(body),
+                                   content_type='application/ld+json')
+        self.assertEqual(response.status_code, 200)
+        self.assertIn('conversation_set', response.data)