diff --git a/tests/FFMpeg/Tests/Filters/Video/SynchronizeFilterTest.php b/tests/FFMpeg/Tests/Filters/Video/SynchronizeFilterTest.php
index 69fb681..7bf2dc2 100644
--- a/tests/FFMpeg/Tests/Filters/Video/SynchronizeFilterTest.php
+++ b/tests/FFMpeg/Tests/Filters/Video/SynchronizeFilterTest.php
@@ -13,6 +13,6 @@ class SynchronizeFilterTest extends TestCase
         $format = $this->getMock('FFMpeg\Format\VideoInterface');
 
         $filter = new SynchronizeFilter();
-        $this->assertEquals(array('-async', '1'), $filter->apply($video, $format));
+        $this->assertEquals(array('-async', '1', '-metadata:s:v:0', 'start_time=0'), $filter->apply($video, $format));
     }
 }