diff --git a/backend/models.py b/backend/models.py
index f1fd289..c30f6c6 100644
--- a/backend/models.py
+++ b/backend/models.py
@@ -81,6 +81,7 @@ class Trip(Base):
 
     selected_tags = relationship("Tag", secondary=trip_selected_tag_table, backref="selected_in_trips", cascade="all, delete")
     marked_tags = relationship("Tag", secondary=trip_marked_tag_table, backref="marked_in_trips", cascade="all, delete")
+    items = relationship("TripItem", back_populates="trip", cascade="all, delete-orphan")
 
 
 class TripItem(Base):