diff --git a/app/Classes/File/Mail.php b/app/Classes/File/Mail.php
index c6297c6..354eebe 100644
--- a/app/Classes/File/Mail.php
+++ b/app/Classes/File/Mail.php
@@ -87,6 +87,7 @@ final class Mail extends Send
 					]);
 
 			$this->content = NULL;
+			$this->f = NULL;
 		}
 	}