diff --git a/backend/app/models/chore.py b/backend/app/models/chore.py
index 05cafc4..5a1e8b2 100644
--- a/backend/app/models/chore.py
+++ b/backend/app/models/chore.py
@@ -7,11 +7,11 @@ import enum
 
 class ChoreFrequency(str, enum.Enum):
     """Chore frequency options."""
+    ON_TRIGGER = "on_trigger"
     DAILY = "daily"
     WEEKLY = "weekly"
     FORTNIGHTLY = "fortnightly"
     MONTHLY = "monthly"
-    ADHOC = "adhoc"
 
 class ChoreStatus(str, enum.Enum):
     """Chore status options."""