diff --git a/public/customfield/classes/handler.php b/public/customfield/classes/handler.php
index f3dc95f6b05..532a07b7f12 100644
--- a/public/customfield/classes/handler.php
+++ b/public/customfield/classes/handler.php
@@ -706,6 +706,7 @@ abstract class handler {
             }
             $data->instance_form_save($instance);
         }
+        $this->clear_configuration_cache();
     }
 
     /**