diff --git a/bl-kernel/dbsite.class.php b/bl-kernel/dbsite.class.php
index 9a530182..de313244 100644
--- a/bl-kernel/dbsite.class.php
+++ b/bl-kernel/dbsite.class.php
@@ -62,7 +62,7 @@ class dbSite extends dbJSON
 	}
 
 	// Returns an array with the filters for the url.
-	public function uriFilters($filter)
+	public function uriFilters($filter='')
 	{
 		$filters['admin'] = '/admin/';
 		$filters['post'] = $this->getField('uriPost');