diff --git a/tests/Monolog/Handler/DynamoDbHandlerTest.php b/tests/Monolog/Handler/DynamoDbHandlerTest.php
index 21f0f16c..a38a8cb7 100644
--- a/tests/Monolog/Handler/DynamoDbHandlerTest.php
+++ b/tests/Monolog/Handler/DynamoDbHandlerTest.php
@@ -21,7 +21,9 @@ class DynamoDbHandlerTest extends TestCase
             $this->markTestSkipped('aws/aws-sdk-php not installed');
         }
 
-        $this->client = $this->getMockBuilder('Aws\DynamoDb\DynamoDbClient')->disableOriginalConstructor()->getMock();
+        $this->client = $this->getMockBuilder('Aws\DynamoDb\DynamoDbClient')
+            ->setMethods(array('formatAttributes', '__call'))
+            ->disableOriginalConstructor()->getMock();
     }
 
     public function testConstruct()