diff --git a/wizards/__pycache__/bank_reconcile_wizard.cpython-312.pyc b/wizards/__pycache__/bank_reconcile_wizard.cpython-312.pyc
index a87a9ca..53ee78d 100644
Binary files a/wizards/__pycache__/bank_reconcile_wizard.cpython-312.pyc and b/wizards/__pycache__/bank_reconcile_wizard.cpython-312.pyc differ
diff --git a/wizards/bank_reconcile_wizard.py b/wizards/bank_reconcile_wizard.py
index 8a18d6c..7a7a030 100644
--- a/wizards/bank_reconcile_wizard.py
+++ b/wizards/bank_reconcile_wizard.py
@@ -40,6 +40,11 @@ class BankReconcileWizard(models.TransientModel):
         if not self.journal_entry_line_id:
             raise UserError("Please select a journal entry line to reconcile.")
         
+        # Check if any of the selected bank lines are already reconciled
+        for bank_line in self.bank_line_ids:
+            if bank_line.move_id and 'Reconciliation:' in bank_line.move_id.ref:
+                raise UserError(f"Bank statement line '{bank_line.ref}' has already been reconciled and cannot be reconciled again.")
+        
         # Process each selected bank line individually
         for bank_line in self.bank_line_ids:
             self._reconcile_single_line(bank_line, self.journal_entry_line_id)