diff --git a/app/Models/CaCertificate.php b/app/Models/CaCertificate.php
index 1ef7564..2b23664 100644
--- a/app/Models/CaCertificate.php
+++ b/app/Models/CaCertificate.php
@@ -25,6 +25,7 @@ class CaCertificate extends Model
         'valid_to',
         'is_latest',
         'issuer_name',
+        'issuer_serial',
         'cert_path',
         'der_path',
         'bat_path',
diff --git a/app/Services/OpenSslService.php b/app/Services/OpenSslService.php
index c2b2b39..7774b45 100644
--- a/app/Services/OpenSslService.php
+++ b/app/Services/OpenSslService.php
@@ -416,7 +416,8 @@ class OpenSslService
                 'serial_number' => $newSerialHex,
                 'valid_from' => date('Y-m-d H:i:s', $newInfo['validFrom_time_t']),
                 'valid_to' => date('Y-m-d H:i:s', $newInfo['validTo_time_t']),
-                'issuer_name' => $cert->ca_type === 'root' ? 'Self-Signed' : ($root ? $root->common_name : 'Unknown Root'),
+                'issuer_name' => $cert->ca_type === 'root' ? $cert->common_name : ($root ? $root->common_name : 'Unknown Root'),
+                'issuer_serial' => $cert->ca_type === 'root' ? $newSerialHex : ($root ? $root->serial_number : null),
             ];
 
         } finally {
@@ -475,6 +476,7 @@ class OpenSslService
             'valid_from' => $newData['valid_from'],
             'valid_to' => $newData['valid_to'],
             'issuer_name' => $newData['issuer_name'],
+            'issuer_serial' => $newData['issuer_serial'],
             'is_latest' => true,
         ]);
 
diff --git a/database/migrations/2025_12_23_123913_create_ca_certificates_table.php b/database/migrations/2025_12_23_123913_create_ca_certificates_table.php
index 22b0aeb..5580568 100644
--- a/database/migrations/2025_12_23_123913_create_ca_certificates_table.php
+++ b/database/migrations/2025_12_23_123913_create_ca_certificates_table.php
@@ -32,6 +32,7 @@ return new class extends Migration
                 $table->string('common_name')->nullable();
                 $table->string('organization')->nullable();
                 $table->string('issuer_name')->nullable();
+                $table->string('issuer_serial')->nullable();
                 $table->dateTime('valid_from')->nullable();
                 $table->dateTime('valid_to')->nullable();
                 
@@ -66,6 +67,9 @@ return new class extends Migration
                 if (!Schema::connection('mysql_ca')->hasColumn('ca_certificates', 'issuer_name')) {
                     $table->string('issuer_name')->nullable()->after('organization');
                 }
+                if (!Schema::connection('mysql_ca')->hasColumn('ca_certificates', 'issuer_serial')) {
+                    $table->string('issuer_serial')->nullable()->after('issuer_name');
+                }
             });
         }
     }