diff --git a/server/plugins-available/maildrop_plugin.inc.php b/server/plugins-available/maildrop_plugin.inc.php
index 8891ead2da86d7332dbf95af722530619dd63f08..58cbaa47747d8e53a68e4793ca59059402bc209e 100644
--- a/server/plugins-available/maildrop_plugin.inc.php
+++ b/server/plugins-available/maildrop_plugin.inc.php
@@ -226,6 +226,10 @@ class maildrop_plugin {
 			if(is_file($file)) unlink($file)  or $app->log("Unable to delete file: $file",LOGLEVEL_WARN);
 			$file = $this->mailfilter_config_dir.'/'.$email_parts[1].'/'.$email_parts[0].'/.mailfilter';
 			if(is_file($file)) unlink($file)  or $app->log("Unable to delete file: $file",LOGLEVEL_WARN);
+			$file = $this->mailfilter_config_dir.'/'.$email_parts[1].'/'.$email_parts[0].'/.vacation.lst.gdbm';
+			if(is_file($file)) unlink($file)  or $app->log("Unable to delete file: $file",LOGLEVEL_WARN);
+			$file = $this->mailfilter_config_dir.'/'.$email_parts[1].'/'.$email_parts[0].'/.vacation.lst.lock';
+			if(is_file($file)) unlink($file)  or $app->log("Unable to delete file: $file",LOGLEVEL_WARN);
 			rmdir($dir) or $app->log("Unable to delete directory: $dir",LOGLEVEL_WARN);
 		}
 	}