diff --git a/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php b/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php
index ee20dea..f121691 100644
--- a/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php
+++ b/tests/Unit/Filters/Video/ExtractMultipleFramesFilterTest.php
@@ -68,7 +68,7 @@ class ExtractMultipleFramesFilterTest extends TestCase
      * @expectedException \FFMpeg\Exception\InvalidArgumentException
      */
     public function testInvalidFrameFileType() {
-    	$filter = new ExtractMultipleFramesFilter('1/1', '/');
+        $filter = new ExtractMultipleFramesFilter('1/1', '/');
         $filter->setFrameFileType('webm');
     }
 }