diff --git a/src/plugins/plugin_misc_maildir.py b/src/plugins/plugin_misc_maildir.py
index cee966b9..c72d6539 100755
--- a/src/plugins/plugin_misc_maildir.py
+++ b/src/plugins/plugin_misc_maildir.py
@@ -474,7 +474,7 @@ class MailboxUser:
         Also purge the internal data of these messages
         """
         for mess_id in self.getMessageIdsWithFlag("\\Deleted"):
-            print ("Deleting %s", mess_id)
+            print ("Deleting %s" % mess_id)
             self.mailbox.deleteMessage(self.getIdxFromId(mess_id))
         self.mailbox = maildir.MaildirMailbox(self.mailbox_path) #We need to reparse the dir to have coherent indexing
         self.maildir.purgeDeleted(self.name, profile=self.profile)