diff --git a/plugins/system/languagefilter/languagefilter.php b/plugins/system/languagefilter/languagefilter.php
index 21148f9a56f29..af4e2a9c15bc6 100644
--- a/plugins/system/languagefilter/languagefilter.php
+++ b/plugins/system/languagefilter/languagefilter.php
@@ -230,6 +230,7 @@ public function parseRule(&$router, &$uri)
 	{
 		// Did we find the current and existing language yet?
 		$found = false;
+		$lang_code = false;
 
 		// Are we in SEF mode or not?
 		if ($this->mode_sef)