diff --git a/controller/database.py b/controller/database.py
index c548c94..20ffa44 100644
--- a/controller/database.py
+++ b/controller/database.py
@@ -145,7 +145,8 @@ def ensure_detection_rounds_table(self):
             sender_id   VARCHAR(255) NOT NULL,
             status      TEXT NOT NULL DEFAULT 'active',
             created_at  TIMESTAMPTZ DEFAULT NOW(),
-            completed_at TIMESTAMPTZ
+            completed_at TIMESTAMPTZ,
+            receiver_violated BOOLEAN NOT NULL DEFAULT FALSE
         );
         CREATE INDEX IF NOT EXISTS idx_detection_rounds_active 
             ON detection_rounds (status) WHERE status = 'active';