diff --git a/src/API/Request/Cancel.php b/src/API/Request/Cancel.php
index da6e089..17f2f61 100644
--- a/src/API/Request/Cancel.php
+++ b/src/API/Request/Cancel.php
@@ -27,7 +27,7 @@ public function getMethod()
     public function getParams()
     {
         return [
-            'classroom_id'  => $this->classroomId,
+            'class'  => $this->classroomId,
         ];
     }
 }
diff --git a/tests/API/Request/CancelTest.php b/tests/API/Request/CancelTest.php
index 73e16fd..e5682cc 100644
--- a/tests/API/Request/CancelTest.php
+++ b/tests/API/Request/CancelTest.php
@@ -22,7 +22,7 @@ public function testGetMethod()
     public function testGetParams()
     {
         $params = [
-            'classroom_id'  => 12345,
+            'class'  => 12345,
         ];
 
         $this->assertEquals($params, $this->request->getParams());