diff --git a/classes/module/Module.php b/classes/module/Module.php
index 96ad2d8b7..0fd64e2bb 100644
--- a/classes/module/Module.php
+++ b/classes/module/Module.php
@@ -1509,7 +1509,7 @@ abstract class ModuleCore
 	public function displayError($error)
 	{
 	 	$output = '
-		<div class="module_error alert error">
+		<div class="module_error alert alert-danger">
 			'.$error.'
 		</div>';
 		$this->error = true;
@@ -1519,7 +1519,7 @@ abstract class ModuleCore
 	public function displayConfirmation($string)
 	{
 	 	$output = '
-		<div class="module_confirmation conf confirm">
+		<div class="module_confirmation conf confirm alert alert-success">
 			'.$string.'
 		</div>';
 		return $output;
diff --git a/modules/bankwire/bankwire.php b/modules/bankwire/bankwire.php
index b0f8b4873..dd7539ac6 100644
--- a/modules/bankwire/bankwire.php
+++ b/modules/bankwire/bankwire.php
@@ -107,7 +107,7 @@ class BankWire extends PaymentModule
 			Configuration::updateValue('BANK_WIRE_OWNER', Tools::getValue('BANK_WIRE_OWNER'));
 			Configuration::updateValue('BANK_WIRE_ADDRESS', Tools::getValue('BANK_WIRE_ADDRESS'));
 		}
-		$this->_html .= '<div class="alert alert-success"> '.$this->l('Settings updated').'</div>';
+		$this->_html .= $this->displayConfirmation($this->l('Settings updated'));
 	}
 
 	private function _displayBankWire()
@@ -124,7 +124,7 @@ class BankWire extends PaymentModule
 				$this->_postProcess();
 			else
 				foreach ($this->_postErrors as $err)
-					$this->_html .= '<div class="alert alert-danger">'.$err.'</div>';
+					$this->_html .= $this->displayError($err);
 		}
 		else
 			$this->_html .= '<br />';
diff --git a/modules/blockbestsellers/blockbestsellers.php b/modules/blockbestsellers/blockbestsellers.php
index d0c4289cc..27547646c 100644
--- a/modules/blockbestsellers/blockbestsellers.php
+++ b/modules/blockbestsellers/blockbestsellers.php
@@ -108,7 +108,7 @@ class BlockBestSellers extends Module
 		if (Tools::isSubmit('submitBestSellers'))
 		{
 			Configuration::updateValue('PS_BLOCK_BESTSELLERS_DISPLAY', (int)Tools::getValue('PS_BLOCK_BESTSELLERS_DISPLAY'));
-			$output .= '<div class="alert alert-success">'.$this->l('Settings updated').'</div>';
+			$output .= $this->displayConfirmation($this->l('Settings updated'));
 		}
 		return $output.$this->renderForm();
 	}