diff --git a/classes/controller/Controller.php b/classes/controller/Controller.php
index 7e4ebf6ed..570a5a1e7 100644
--- a/classes/controller/Controller.php
+++ b/classes/controller/Controller.php
@@ -175,9 +175,9 @@ abstract class ControllerCore
 			// then using displayAjax[action]
 			if ($this->ajax)
 			{
-				$action = Tools::getValue('action');
-				if (!empty($action) && method_exists($this, 'displayAjax'.Tools::toCamelCase($action, true)))
-					$this->{'displayAjax'.$action}();
+				$action = 'displayAjax' . Tools::toCamelCase(Tools::getValue('action', true));
+				if (!empty($action) && method_exists($this, $action))
+					$this->{$action}();
 				elseif (method_exists($this, 'displayAjax'))
 					$this->displayAjax();
 			}