diff --git a/l10n_br_nfe/models/document.py b/l10n_br_nfe/models/document.py
index 8abf6d66a408..977cd5970c7b 100644
--- a/l10n_br_nfe/models/document.py
+++ b/l10n_br_nfe/models/document.py
@@ -1234,6 +1234,8 @@ def _document_qrcode(self):
         super()._document_qrcode()
 
         for record in self.filtered(lambda d: d.document_type == MODELO_FISCAL_NFCE):
+            if record.nfe40_infNFeSupl:
+                record.nfe40_infNFeSupl.unlink()
             record.nfe40_infNFeSupl = self.env[
                 "l10n_br_fiscal.document.supplement"
             ].create(