diff --git a/lessc.inc.php b/lessc.inc.php
index 37988952..79f3fcbb 100644
--- a/lessc.inc.php
+++ b/lessc.inc.php
@@ -2147,6 +2147,7 @@ protected function makeParser($name) {
 
     public function setFormatter($name) {
         $this->formatterName = $name;
+        return $this;
     }
 
     protected function newFormatter() {