diff --git a/tortoise/models.py b/tortoise/models.py
index d195fc0b7..0514d837d 100644
--- a/tortoise/models.py
+++ b/tortoise/models.py
@@ -38,6 +38,7 @@
 from tortoise.fields.relational import (
     BackwardFKRelation,
     BackwardOneToOneRelation,
+    RelationalField,
     ForeignKeyFieldInstance,
     ManyToManyFieldInstance,
     ManyToManyRelation,
@@ -276,6 +277,12 @@ def add_field(self, name: str, value: Field) -> None:
         field_filters = get_filters_for_field(
             field_name=name, field=value, source_field=value.source_field or name
         )
+        if value.pk:
+            field_filters.update(
+                get_filters_for_field(
+                    field_name="pk", field=value, source_field=value.source_field or name
+                )
+            )
         self._filters.update(field_filters)
         self.finalise_fields()
 
@@ -618,6 +625,8 @@ def __search_for_field_attributes(base: Type, attrs: dict) -> None:
         meta.pk = fields_map.get(pk_attr)  # type: ignore
         if meta.pk:
             meta.db_pk_column = meta.pk.source_field or meta.pk_attr
+            if isinstance(meta.pk, RelationalField) and meta.pk.source_field is None:
+                meta.db_pk_column = f"{meta.db_pk_column}_id"
         meta._inited = False
         if not fields_map:
             meta.abstract = True