diff --git a/src/MD_STD.php b/src/MD_STD.php
index ef741d7..b270d46 100644
--- a/src/MD_STD.php
+++ b/src/MD_STD.php
@@ -741,7 +741,6 @@ final class MD_STD {
         if (!($mime_type = finfo_file($finfo, $filepath))) {
             throw new MDWrongFileType("Cannot get mime type of file: " . basename($filepath));
         }
-        \finfo_close($finfo);
 
         return $mime_type;