diff --git a/UTILS/mail_receive/mailbox_cleaner.bat b/UTILS/mail_receive/mailbox_cleaner.bat
index 72c84a8ee0..5b4a7c9510 100644
--- a/UTILS/mail_receive/mailbox_cleaner.bat
+++ b/UTILS/mail_receive/mailbox_cleaner.bat
@@ -1,4 +1,4 @@
 @REM Aan te roepen met mailbox_cleaner administrator ****
 @cd /D "%~dp0"
 @ECHO See ../../TEMP/%0.log for results
-@cscript //NoLogo mailbox_cleaner.js %* >>../../TEMP/%0.log 2>&1
+@cscript //NoLogo mailbox_cleaner.js %* >>../../TEMP/%0.log 2>>&1