diff --git a/l10n_it_fatturapa_pec/tests/data/POSTA CERTIFICATA: Invio File 7339338 (base64).txt b/l10n_it_fatturapa_pec/tests/data/POSTA CERTIFICATA_ Invio File 7339338 (base64).txt
similarity index 100%
rename from l10n_it_fatturapa_pec/tests/data/POSTA CERTIFICATA: Invio File 7339338 (base64).txt
rename to l10n_it_fatturapa_pec/tests/data/POSTA CERTIFICATA_ Invio File 7339338 (base64).txt
diff --git a/l10n_it_fatturapa_pec/tests/test_e_invoice_response.py b/l10n_it_fatturapa_pec/tests/test_e_invoice_response.py
index 3cb79f467cd1..8b1bf70707cc 100644
--- a/l10n_it_fatturapa_pec/tests/test_e_invoice_response.py
+++ b/l10n_it_fatturapa_pec/tests/test_e_invoice_response.py
@@ -122,7 +122,7 @@ def test_process_response_INVIO_base64(self):
         creates a new e-invoice
         """
         incoming_mail = self._get_file(
-            "POSTA CERTIFICATA: Invio File 7339338 (base64).txt"
+            "POSTA CERTIFICATA_ Invio File 7339338 (base64).txt"
         )
 
         e_invoices = self.attach_in_model.search([])