diff --git a/plugins/managesieve/tests/Parser.php b/plugins/managesieve/tests/Parser.php
index 06b644b34..00915cc20 100644
--- a/plugins/managesieve/tests/Parser.php
+++ b/plugins/managesieve/tests/Parser.php
@@ -31,7 +31,7 @@ class Parser extends PHPUnit_Framework_TestCase
         $result   = array();
 
         while ($file = readdir($dir)) {
-            if (preg_match('/^[a-z_]+$/', $file)) {
+            if (preg_match('/^[a-z0-9_]+$/', $file)) {
                 $input = file_get_contents($dir_path . '/' . $file);
 
                 if (file_exists($dir_path . '/' . $file . '.out')) {
diff --git a/plugins/managesieve/tests/src/parser_kep14.out b/plugins/managesieve/tests/src/parser_kep14.out
new file mode 100644
index 000000000..cb7faa7f8
--- /dev/null
+++ b/plugins/managesieve/tests/src/parser_kep14.out
@@ -0,0 +1,3 @@
+require ["variables"];
+set "EDITOR" "Roundcube";
+set "EDITOR_VERSION" "123";