diff --git a/account_reconcile_model_oca/models/account_reconcile_model.py b/account_reconcile_model_oca/models/account_reconcile_model.py
index 58e6a3c2a3..ee6987ba73 100644
--- a/account_reconcile_model_oca/models/account_reconcile_model.py
+++ b/account_reconcile_model_oca/models/account_reconcile_model.py
@@ -478,14 +478,14 @@ def _get_partner_from_mapping(self, st_line):
 
         for partner_mapping in self.partner_mapping_line_ids:
             match_payment_ref = (
-                re.match(partner_mapping.payment_ref_regex, st_line.payment_ref)
+                re.match(partner_mapping.payment_ref_regex, ".*" + st_line.payment_ref)
                 if partner_mapping.payment_ref_regex
                 else True
             )
             match_narration = (
                 re.match(
                     partner_mapping.narration_regex,
-                    tools.html2plaintext(st_line.narration or "").rstrip(),
+                    ".*" + tools.html2plaintext(st_line.narration or "").rstrip(),
                 )
                 if partner_mapping.narration_regex
                 else True