diff --git a/src/FFMpeg/Media/Frame.php b/src/FFMpeg/Media/Frame.php
index 0544113..21499f9 100644
--- a/src/FFMpeg/Media/Frame.php
+++ b/src/FFMpeg/Media/Frame.php
@@ -115,8 +115,7 @@ class Frame extends AbstractMediaType
             $commands = array_merge($commands, $filter->apply($this));
         }
 
-        // without output filename when return binary string
-        if(!$returnBase64) {
+        if (!$returnBase64) {
             $commands = array_merge($commands, array($pathfile));
         }
 
diff --git a/tests/Unit/Media/FrameTest.php b/tests/Unit/Media/FrameTest.php
index 51ee2cd..4c96527 100644
--- a/tests/Unit/Media/FrameTest.php
+++ b/tests/Unit/Media/FrameTest.php
@@ -61,7 +61,9 @@ class FrameTest extends AbstractMediaTestCase
 
         $pathfile = '/target/destination';
 
-        array_push($commands, $pathfile);
+        if (!$base64) {
+            array_push($commands, $pathfile);
+        }
 
         $driver->expects($this->once())
             ->method('command')