diff --git a/modules/account_invoice/invoice.py b/modules/account_invoice/invoice.py
index 2db45844ea..908acb4500 100644
--- a/modules/account_invoice/invoice.py
+++ b/modules/account_invoice/invoice.py
@@ -723,7 +723,7 @@ class Invoice(Workflow, ModelSQL, ModelView, TaxableMixin):
         return lines
 
     def get_reconciliation_lines(self, name):
-        if self.state != 'paid':
+        if not self.move:
             return
         lines = set()
         for line in self.move.lines: