diff --git a/snappymail/v/0.0.0/app/libraries/MailSo/Mime/Parser.php b/snappymail/v/0.0.0/app/libraries/MailSo/Mime/Parser.php
index 805484bb8..b5c77755f 100644
--- a/snappymail/v/0.0.0/app/libraries/MailSo/Mime/Parser.php
+++ b/snappymail/v/0.0.0/app/libraries/MailSo/Mime/Parser.php
@@ -225,7 +225,7 @@ abstract class Parser
 
 						$oSubPart = new Part;
 
-						$oSubPart->parseStreamRecursive($rStreamHandle,
+						static::parseStreamRecursive($oSubPart, $rStreamHandle,
 							$iOffset, $sPrevBuffer, $sBuffer, $aBoundaryStack, $bIsOef, true);
 
 						$oPart->SubParts->append($oSubPart);