diff --git a/src/Endpoints/CustomHostnames.php b/src/Endpoints/CustomHostnames.php
index 6d6733c..7540365 100644
--- a/src/Endpoints/CustomHostnames.php
+++ b/src/Endpoints/CustomHostnames.php
@@ -34,8 +34,7 @@ class CustomHostnames implements API
      * @param string $customOriginServer
      * @param bool   $wildcard
      * @param string $bundleMethod
-     * @param string $customKey
-     * @param string $customCertificate
+     * @param array $customSsl
      * @return \stdClass
      */
     public function addHostname(
@@ -47,8 +46,7 @@ class CustomHostnames implements API
         string $customOriginServer = '',
         bool $wildcard = false,
         string $bundleMethod = '',
-        string $customKey = '',
-        string $customCertificate = ''
+        array $customSsl = []
     ): \stdClass {
         $options = [
             'hostname' => $hostname,
@@ -68,12 +66,12 @@ class CustomHostnames implements API
             $options['ssl']['bundle_method'] = $bundleMethod;
         }
 
-        if (!empty($customKey)) {
-            $options['ssl']['custom_key'] = $customKey;
+        if (!empty($customSsl['key'])) {
+            $options['ssl']['custom_key'] = $customSsl['key'];
         }
 
-        if (!empty($customCertificate)) {
-            $options['ssl']['custom_certificate'] = $customCertificate;
+        if (!empty($customSsl['certificate'])) {
+            $options['ssl']['custom_certificate'] = $customSsl['certificate'];
         }
 
         $zone = $this->adapter->post('zones/'.$zoneID.'/custom_hostnames', $options);
diff --git a/tests/Endpoints/CustomHostnamesTest.php b/tests/Endpoints/CustomHostnamesTest.php
index fd584e4..276776c 100644
--- a/tests/Endpoints/CustomHostnamesTest.php
+++ b/tests/Endpoints/CustomHostnamesTest.php
@@ -47,6 +47,7 @@ bsrBsljYfVvtLQzilugs1oEe94LTrYjR2oQt0W24bqpGQHuv1ILuUBuodERkxSFL
 /cMkj3wSfC341hFaJEuG1+PcxA==
 -----END PRIVATE KEY-----
 KEY;
+
         $customCertificate = <<<CERTIFICATE
 -----BEGIN CERTIFICATE-----
 MIIDmTCCAoGgAwIBAgIULyaeNqp0tOut/wvuxNyKmUxOGYEwDQYJKoZIhvcNAQEL
@@ -101,6 +102,7 @@ CERTIFICATE;
             'http3' => 'on',
             'min_tls_version' => '1.2'
         ];
+
         $hostname->addHostname(
             '023e105f4ecef8ad9ca31a8372d0c353',
             'app.example.com',
@@ -110,8 +112,10 @@ CERTIFICATE;
             'origin.example.com',
             true,
             'optimal',
-            $customKey,
-            $customCertificate
+            [
+                'key' => $customKey,
+                'certificate' => $customCertificate,
+            ]
         );
         $this->assertEquals('0d89c70d-ad9f-4843-b99f-6cc0252067e9', $hostname->getBody()->result->id);
     }