diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 824124100..e1b5dff6a 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -19,6 +19,7 @@ Changelog
 - Pydantic models with a Primary Key that is also a raw field of a relation is now not hidden when ``exclude_raw_fields=True`` as it is a critically important field
 - Raise an informative error when a field is set as nullable and primary key at the same time
 - Foreign key id's are now described to have the positive-integer range of the field it is related to
+- Fixed prefetching over OneToOne relations
 
 0.16.8
 ------
diff --git a/tests/contrib/test_pydantic.py b/tests/contrib/test_pydantic.py
index 096082690..a6781a17f 100644
--- a/tests/contrib/test_pydantic.py
+++ b/tests/contrib/test_pydantic.py
@@ -787,11 +787,39 @@ async def test_event(self):
             },
         )
 
-    @test.skip("Temp skip")
     async def test_address(self):
         addressp = await self.Address_Pydantic.from_tortoise_orm(await Address.get(street="Ocean"))
-        print(addressp.json(indent=4))
-        # addressdict = addressp.dict()
+        # print(addressp.json(indent=4))
+        addressdict = addressp.dict()
+
+        # Remove timestamps
+        del addressdict["event"]["tournament"]["created"]
+        del addressdict["event"]["modified"]
+
+        self.assertEqual(
+            addressdict,
+            {
+                "city": "Santa Monica",
+                "street": "Ocean",
+                "event": {
+                    "event_id": self.event.event_id,
+                    "name": "Test",
+                    "tournament": {
+                        "id": self.tournament.id,
+                        "name": "New Tournament",
+                        "desc": None,
+                    },
+                    "reporter": {"id": self.reporter.id, "name": "The Reporter"},
+                    "participants": [
+                        {"id": self.team1.id, "name": "Onesies", "alias": None},
+                        {"id": self.team2.id, "name": "T-Shirts", "alias": None},
+                    ],
+                    "token": self.event.token,
+                    "alias": None,
+                },
+                "event_id": self.address.event_id,
+            },
+        )
 
     async def test_tournament(self):
         tournamentp = await self.Tournament_Pydantic.from_tortoise_orm(
diff --git a/tortoise/__init__.py b/tortoise/__init__.py
index 2e9e81d9e..f338347d2 100644
--- a/tortoise/__init__.py
+++ b/tortoise/__init__.py
@@ -245,6 +245,7 @@ def split_reference(reference: str) -> Tuple[str, str]:
                     else:
                         key_o2o_object = deepcopy(related_model._meta.pk)
                         o2o_object.to_field_instance = related_model._meta.pk
+                        o2o_object.to_field = related_model._meta.pk_attr
 
                     key_field = f"{field}_id"
                     key_o2o_object.pk = o2o_object.pk