diff --git a/backend/src/cyclone/reconcile.py b/backend/src/cyclone/reconcile.py
index e65c8bf..d500891 100644
--- a/backend/src/cyclone/reconcile.py
+++ b/backend/src/cyclone/reconcile.py
@@ -287,6 +287,10 @@ def run(session, batch_id: str) -> ReconcileResult:
         else:
             m.claim.state = ClaimState.REVERSED
         m.claim.matched_remittance_id = m.remittance.id
+        # Symmetric FK: also set Remittance.claim_id so list_unmatched (which
+        # filters on Remittance.claim_id IS NULL) correctly drops auto-matched
+        # remits from the orphan bucket. Manual matches do this too.
+        m.remittance.claim_id = m.claim.id
 
         session.add(ActivityEvent(
             ts=datetime.now(timezone.utc), kind=intent.activity_kind,