diff --git a/src/Endpoints/CustomHostnames.php b/src/Endpoints/CustomHostnames.php
index 1a90d0f..507d41d 100644
--- a/src/Endpoints/CustomHostnames.php
+++ b/src/Endpoints/CustomHostnames.php
@@ -129,8 +129,7 @@ class CustomHostnames implements API
      * @param string    $customOriginServer
      * @param bool|null $wildcard
      * @param string    $bundleMethod
-     * @param string    $customKey
-     * @param string    $customCertificate
+     * @param array    $customSsl
      * @return \stdClass
      */
     public function updateHostname(
@@ -142,8 +141,8 @@ class CustomHostnames implements API
         string $customOriginServer = '',
         ?bool $wildcard = null,
         string $bundleMethod = '',
-        string $customKey = '',
-        string $customCertificate = ''): \stdClass {
+        array $customSsl = []
+    ): \stdClass {
         $query = [];
 
         if (!empty($sslMethod)) {
@@ -166,12 +165,12 @@ class CustomHostnames implements API
             $query['bundle_method'] = $bundleMethod;
         }
 
-        if (empty($customKey) === false) {
-            $query['custom_key'] = $customKey;
+        if (empty($customSsl['key']) === false) {
+            $query['custom_key'] = $customSsl['key'];
         }
 
-        if (empty($customCertificate) === false) {
-            $query['custom_certificate'] = $customCertificate;
+        if (empty($customSsl['certificate']) === false) {
+            $query['custom_certificate'] = $customSsl['certificate'];
         }
 
         if (!empty($query)) {
diff --git a/tests/Endpoints/CustomHostnamesTest.php b/tests/Endpoints/CustomHostnamesTest.php
index ad752e6..b542c83 100644
--- a/tests/Endpoints/CustomHostnamesTest.php
+++ b/tests/Endpoints/CustomHostnamesTest.php
@@ -105,64 +105,11 @@ class CustomHostnamesTest extends TestCase
     {
         $response = $this->getPsr7JsonResponseForFixture('Endpoints/updateHostname.json');
 
+        $customSsl = $this->getCustomSsl();
+
         $mock = $this->getMockBuilder(\Cloudflare\API\Adapter\Adapter::class)->getMock();
         $mock->method('patch')->willReturn($response);
 
-        $customKey = <<<KEY
------BEGIN PRIVATE KEY-----
-MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDZfoCUkzkZLCzo
-OFTtlXU9OYqNFx06J/GOKCwDCyfkY5RY1x6BVrVpTqf/JaU42DZmCjIiEugBg4bu
-eu9/w21prIWgRKEe8mjrw83+3QSIyQrs+78rqwDptUfL+IyhYln6SBjqPQ569Y0w
-x6A896PDMYPHgnWtclGwsxDNKJ2eWsH+C4UkLUeVM4BILEJ00YUjayowL/0sflTJ
-yY58c9fVV27aGBJ4znreYkBojPQ0fzVZ3HJfYD+DgYUUkuzN/WohOLTNTxvzt/i2
-GNxP8tZzi0E/t4KtGTsIVmROKaCXnmozQyv0VES5TNZL1nxLvVuPca9DKXwVst2o
-v5czEM8fAgMBAAECggEBANgG/aIVpWYqaaRyp3CgviWE7Oh9J+um1xgzMJwJTaNd
-gXDIoyUmweQKW3Vjp/uRTl8GC4uqqcUvJivj8dU+gIOw970bzcmWT7616vsV/rX6
-sp524wh1vt9jzx97DfwSW3rsd8rZwHNDSO1FqxRDiOaNXO4i183iud8/zRVqHTy1
-5girngsGl7ebTt3LDHDQQ86kND2nVr8xZuFaqs8Td41AsF6DGbB709wMUqoM/obO
-iUtXCZ5Rrm2a78OUi0cqWsuxdhJjtOW0PBvrPTlSq+1EuQWAWV8HN1JI58YnLcLy
-SKZpsu5wxWdKMgX0NCkfLjDZCAPlBaZLPPp986GHavECgYEA8hM6tIfGBnXuxBvI
-y2lJG3sHGs83pnCqYg9dDrr+m3JOPQu6l9MEPEtsrOiI0Ktu/L+kV5uyBDRvB6ff
-BD6BJ2CiG86UvMpKojBeAlZBLXr1SnWzIPC+3fBzkVSo1MiRs3nTNRfeblkRxC3e
-LWtl96obA1GOgpifrh6ZB2RfvrcCgYEA5gFL4+oDUDcRtc1Pw+AFwPTey+3rkVU+
-FHvRGeU+m6dtxXF+BYFpDs/ONfmHzsdBSwkYxta/x8rKP5uyjl9p0QSdhysrJibO
-sWsoux35QxEZiyplCV2+zMK/79EhS2CuiudAidF6NxK+/g9EwXRlGDDlnFDB2epe
-kyL97K4zCtkCgYEA68Bgbsq/xzD5XFG2xqr9wN6a97gQ+W5F8QQHW74vEZJLsdYH
-Xa7rNBE8gFRiUd5zU4EL+yotPz0VWH5bilWZEJFirvQMFKRp9PRnyZzZEwLpeh+Q
-WSc8qwZudn3dgoTmqMSfNdjODed+jvEgrFkoz/8BGcVGpdcfw8IWxIUzXZcCgYAY
-/OsRx8q0XEdASR3xWdVGMVRDM4X0NB6aexkshwtWPcpfOQVH89dGFK2Cj6mBfYRK
-cqKOd6Y+Pnnajz/G1/bXDnlOxhHaAz1RaSLzsT3zW1g7FlADxHuGI2JW25GSbt6H
-mLgaQPfWI+M8FsyRd+PDzQwk/2EQG7ZKpfKQVByXgQKBgQDkKciB6Wb2hLNTKzK8
-Kr42U70H++QT8AqZX2F79PjgYcRFZqGXLuq/hEuiOhXfl8DFur3fC5JN8AeLC5/j
-bsrBsljYfVvtLQzilugs1oEe94LTrYjR2oQt0W24bqpGQHuv1ILuUBuodERkxSFL
-/cMkj3wSfC341hFaJEuG1+PcxA==
------END PRIVATE KEY-----
-KEY;
-        $customCertificate = <<<CERTIFICATE
------BEGIN CERTIFICATE-----
-MIIDmTCCAoGgAwIBAgIULyaeNqp0tOut/wvuxNyKmUxOGYEwDQYJKoZIhvcNAQEL
-BQAwXDELMAkGA1UEBhMCWFgxFTATBgNVBAcMDERlZmF1bHQgQ2l0eTEcMBoGA1UE
-CgwTRGVmYXVsdCBDb21wYW55IEx0ZDEYMBYGA1UEAwwPYXBwLmV4YW1wbGUuY29t
-MB4XDTIxMDYxNDIzMzU0MVoXDTIyMDYxNDIzMzU0MVowXDELMAkGA1UEBhMCWFgx
-FTATBgNVBAcMDERlZmF1bHQgQ2l0eTEcMBoGA1UECgwTRGVmYXVsdCBDb21wYW55
-IEx0ZDEYMBYGA1UEAwwPYXBwLmV4YW1wbGUuY29tMIIBIjANBgkqhkiG9w0BAQEF
-AAOCAQ8AMIIBCgKCAQEA2X6AlJM5GSws6DhU7ZV1PTmKjRcdOifxjigsAwsn5GOU
-WNcegVa1aU6n/yWlONg2ZgoyIhLoAYOG7nrvf8NtaayFoEShHvJo68PN/t0EiMkK
-7Pu/K6sA6bVHy/iMoWJZ+kgY6j0OevWNMMegPPejwzGDx4J1rXJRsLMQzSidnlrB
-/guFJC1HlTOASCxCdNGFI2sqMC/9LH5UycmOfHPX1Vdu2hgSeM563mJAaIz0NH81
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-M0Mr9FREuUzWS9Z8S71bj3GvQyl8FbLdqL+XMxDPHwIDAQABo1MwUTAdBgNVHQ4E
-FgQUbAfyBm0wpM7FqUb1yqeaF4voY/gwHwYDVR0jBBgwFoAUbAfyBm0wpM7FqUb1
-yqeaF4voY/gwDwYDVR0TAQH/BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAO2Dd
-k/seFjp83caYE/NVdDy5B7l5JeVtruaUdlGbb0xtVhiIdoY43ukhHFw8zuWMW9RX
-SUbrzwacfKLDBikcefk9go6cMimqYIRF8Hntph1gjjqB0papUm2WVYbsBRv2okys
-ej0dGSeUEsWjKRTSMkJsbbiEv6oveeSki069zl+tln0UhbHedkIY3rJsFIyoddSu
-g96r5HPHksnObm1JCym0xd09+msliDkBmq87mxok9m5aEqWX4XvdGfYERV/eD5vC
-KcW4DoM1KZd8E6tlniglc1jC0pzKfho7Uoe6UtObgHZGNwRYwYy+BHvHYY46ctSI
-NdZ7G/lUyrBFhsRrhw==
------END CERTIFICATE-----
-CERTIFICATE;
-
         $mock->expects($this->once())
             ->method('patch')
             ->with(
@@ -178,8 +125,8 @@ CERTIFICATE;
                             'min_tls_version' => '1.2'
                         ],
                         'bundle_method' => 'optimal',
-                        'custom_key' => $customKey,
-                        'custom_certificate' => $customCertificate,
+                        'custom_key' => $customSsl['key'],
+                        'custom_certificate' => $customSsl['certificate'],
                         'wildcard' => true,
 
                     ]
@@ -201,8 +148,10 @@ CERTIFICATE;
             'origin.example.com',
             true,
             'optimal',
-            $customKey,
-            $customCertificate
+            [
+                'key' => $customSsl['key'],
+                'certificate' => $customSsl['certificate'],
+            ]
         );
 
         $this->assertObjectHasAttribute('id', $result);
@@ -249,4 +198,68 @@ CERTIFICATE;
         $this->assertObjectHasAttribute('origin', $result);
         $this->assertObjectHasAttribute('status', $result);
     }
+
+    private function getCustomSsl(): array
+    {
+        $customKey = <<<KEY
+-----BEGIN PRIVATE KEY-----
+MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDZfoCUkzkZLCzo
+OFTtlXU9OYqNFx06J/GOKCwDCyfkY5RY1x6BVrVpTqf/JaU42DZmCjIiEugBg4bu
+eu9/w21prIWgRKEe8mjrw83+3QSIyQrs+78rqwDptUfL+IyhYln6SBjqPQ569Y0w
+x6A896PDMYPHgnWtclGwsxDNKJ2eWsH+C4UkLUeVM4BILEJ00YUjayowL/0sflTJ
+yY58c9fVV27aGBJ4znreYkBojPQ0fzVZ3HJfYD+DgYUUkuzN/WohOLTNTxvzt/i2
+GNxP8tZzi0E/t4KtGTsIVmROKaCXnmozQyv0VES5TNZL1nxLvVuPca9DKXwVst2o
+v5czEM8fAgMBAAECggEBANgG/aIVpWYqaaRyp3CgviWE7Oh9J+um1xgzMJwJTaNd
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+y2lJG3sHGs83pnCqYg9dDrr+m3JOPQu6l9MEPEtsrOiI0Ktu/L+kV5uyBDRvB6ff
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+/cMkj3wSfC341hFaJEuG1+PcxA==
+-----END PRIVATE KEY-----
+KEY;
+
+        $customCertificate = <<<CERTIFICATE
+-----BEGIN CERTIFICATE-----
+MIIDmTCCAoGgAwIBAgIULyaeNqp0tOut/wvuxNyKmUxOGYEwDQYJKoZIhvcNAQEL
+BQAwXDELMAkGA1UEBhMCWFgxFTATBgNVBAcMDERlZmF1bHQgQ2l0eTEcMBoGA1UE
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+NdZ7G/lUyrBFhsRrhw==
+-----END CERTIFICATE-----
+CERTIFICATE;
+
+        return [
+            'key' => $customKey,
+            'certificate' => $customCertificate,
+        ];
+    }
 }