diff --git a/docs_src/tutorial/relationship_attributes/back_populates/tutorial003.py b/docs_src/tutorial/relationship_attributes/back_populates/tutorial003.py
index c137f58..98e1970 100644
--- a/docs_src/tutorial/relationship_attributes/back_populates/tutorial003.py
+++ b/docs_src/tutorial/relationship_attributes/back_populates/tutorial003.py
@@ -36,7 +36,7 @@ class Hero(SQLModel, table=True):
     team: Optional[Team] = Relationship(back_populates="heroes")
 
     weapon_id: Optional[int] = Field(default=None, foreign_key="weapon.id")
-    weapon: Optional[Weapon] = Relationship(back_populates="owner")
+    weapon: Optional[Weapon] = Relationship(back_populates="hero")
 
     powers: List[Power] = Relationship(back_populates="hero")