diff --git a/sources/application/UI/Base/Component/Input/AbstractInput.php b/sources/application/UI/Base/Component/Input/AbstractInput.php
index de061af249..0c0d6346cc 100644
--- a/sources/application/UI/Base/Component/Input/AbstractInput.php
+++ b/sources/application/UI/Base/Component/Input/AbstractInput.php
@@ -12,7 +12,7 @@ use Combodo\iTop\Application\UI\Base\UIBlock;
 /**
  * @package Combodo\iTop\Application\UI\Base\Component\Input
  */
-class AbstractInput extends UIBlock
+abstract class AbstractInput extends UIBlock
 {
 	/** @var string */
 	protected $sName;