diff --git a/checks/tasks/tls/evaluation.py b/checks/tasks/tls/evaluation.py
index b7b6f6742..cd500fa16 100644
--- a/checks/tasks/tls/evaluation.py
+++ b/checks/tasks/tls/evaluation.py
@@ -200,4 +200,3 @@ def _unique_unhashable(ciphers: List[Any]) -> List[Any]:
         if cipher not in result:
             result.append(cipher)
     return result
-
diff --git a/checks/tasks/tls/scans.py b/checks/tasks/tls/scans.py
index cdad3f685..bae5bcd2c 100644
--- a/checks/tasks/tls/scans.py
+++ b/checks/tasks/tls/scans.py
@@ -332,8 +332,10 @@ def cert_checks(hostname, mode, task, af_ip_pair=None, dane_cb_data=None, *args,
 
         # Extract all names from a certificate, taken from sslyze' _cert_chain_analyzer.py
         subj_alt_name_ext = parse_subject_alternative_name_extension(leaf_cert)
-        certificate_names = set(get_common_names(leaf_cert.subject) + subj_alt_name_ext.dns_names + subj_alt_name_ext.ip_addresses)
-        hostmatch_bad = ", ".join(certificate_names)
+        certificate_names = set(
+            get_common_names(leaf_cert.subject) + subj_alt_name_ext.dns_names + subj_alt_name_ext.ip_addresses
+        )
+        hostmatch_bad = certificate_names
 
     trusted_score = (
         trusted_score_good