diff --git a/plugins/af_lang_detect/languagedetect/LanguageDetect.php b/plugins/af_lang_detect/languagedetect/LanguageDetect.php
index 36ebacf93..0856571bf 100644
--- a/plugins/af_lang_detect/languagedetect/LanguageDetect.php
+++ b/plugins/af_lang_detect/languagedetect/LanguageDetect.php
@@ -21,9 +21,9 @@
  * @link      http://langdetect.blogspot.com/
  */
 
-require_once 'lib/languagedetect/Text/LanguageDetect/Exception.php';
-require_once 'lib/languagedetect/Text/LanguageDetect/Parser.php';
-require_once 'lib/languagedetect/Text/LanguageDetect/ISO639.php';
+require_once __DIR__ . '/Text/LanguageDetect/Exception.php';
+require_once __DIR__ . '/Text/LanguageDetect/Parser.php';
+require_once __DIR__ . '/Text/LanguageDetect/ISO639.php';
 
 /**
  * Language detection class