diff --git a/modules/ant_support_form/support.php b/modules/ant_support_form/support.php
index e4d353a8..23dcc4d8 100644
--- a/modules/ant_support_form/support.php
+++ b/modules/ant_support_form/support.php
@@ -63,7 +63,7 @@ if (Tools::isSubmit('submitMessage')) {
 		$errors[] = Tools::displayError('Invalid');
     }
     elseif ($mathCaptcha->check($captcha_ans) !== true) {
-    	$errors[] = Tools::displayError('Invalid');
+    	$errors[] = Tools::displayError('For security reasons, thank you to solve the addition to validate the sending of your message');
     }
     elseif (preg_match("/\p{Han}+/u", $message)) {
         $errors[] = Tools::displayError('Invalid message');
diff --git a/override/controllers/ContactController.php b/override/controllers/ContactController.php
index 153b7dc1..81391438 100755
--- a/override/controllers/ContactController.php
+++ b/override/controllers/ContactController.php
@@ -66,7 +66,7 @@ class ContactController extends ContactControllerCore {
                 $this->errors[] = Tools::displayError('Invalid');
             }
             elseif ($mathCaptcha->check($captcha_ans) !== true) {
-		    	$this->errors[] = Tools::displayError('Invalid');
+		    	$this->errors[] = Tools::displayError('For security reasons, thank you to solve the addition to validate the sending of your message');
 		    }
             elseif (preg_match("/\p{Han}+/u", $message)) {
                 $this->errors[] = Tools::displayError('Invalid message');