diff --git a/modules/translation/library/Translation/Util/GettextTranslationHelper.php b/modules/translation/library/Translation/Util/GettextTranslationHelper.php
index eb4b7438c..2fc420fd5 100644
--- a/modules/translation/library/Translation/Util/GettextTranslationHelper.php
+++ b/modules/translation/library/Translation/Util/GettextTranslationHelper.php
@@ -467,10 +467,13 @@ class GettextTranslationHelper
 
         $subdirs = array();
         while (($filename = readdir($directoryHandle)) !== false) {
+            if ($filename[0] === '.' || $filename === 'vendor') {
+                continue;
+            }
             $filepath = $directory . DIRECTORY_SEPARATOR . $filename;
             if (preg_match('@^[^\.].+\.(' . implode('|', $this->sourceExtensions) . ')$@', $filename)) {
                 $file->fwrite($filepath . PHP_EOL);
-            } elseif (is_dir($filepath) && !preg_match('@^(\.|\.\.)$@', $filename)) {
+            } elseif (! is_link($filepath) && is_dir($filepath)) {
                 $subdirs[] = $filepath;
             }
         }