diff --git a/src/Endpoints/Zones.php b/src/Endpoints/Zones.php
index c58f529..ec85f28 100644
--- a/src/Endpoints/Zones.php
+++ b/src/Endpoints/Zones.php
@@ -23,15 +23,15 @@ class Zones implements API
      * @SuppressWarnings(PHPMD.BooleanArgumentFlag)
      *
      * @param string $name
-     * @param bool $jumpstart
+     * @param bool $jumpStart
      * @param string $organizationID
      * @return \stdClass
      */
-    public function addZone(string $name, bool $jumpstart = false, string $organizationID = ''): \stdClass
+    public function addZone(string $name, bool $jumpStart = false, string $organizationID = ''): \stdClass
     {
         $options = [
             'name' => $name,
-            'jumpstart' => $jumpstart
+            'jump_start' => $jumpStart
         ];
 
         if (!empty($organizationID)) {
diff --git a/tests/Endpoints/ZonesTest.php b/tests/Endpoints/ZonesTest.php
index e0bb396..aceef12 100644
--- a/tests/Endpoints/ZonesTest.php
+++ b/tests/Endpoints/ZonesTest.php
@@ -20,7 +20,7 @@ class ZonesTest extends TestCase
             ->with(
                 $this->equalTo('zones'),
                 $this->equalTo([]),
-                $this->equalTo(['name' => 'example.com', 'jumpstart' => false])
+                $this->equalTo(['name' => 'example.com', 'jump_start' => false])
             );
 
         $zones = new \Cloudflare\API\Endpoints\Zones($mock);
@@ -41,7 +41,7 @@ class ZonesTest extends TestCase
                 $this->equalTo([]),
                 $this->equalTo([
                     'name' => 'example.com',
-                    'jumpstart' => true,
+                    'jump_start' => true,
                     'organization' => (object)['id' => '01a7362d577a6c3019a474fd6f485823']
                 ])
             );