diff --git a/modules/mailalerts/config.xml b/modules/mailalerts/config.xml
index 8af979fc4..d01df2961 100755
--- a/modules/mailalerts/config.xml
+++ b/modules/mailalerts/config.xml
@@ -2,7 +2,7 @@
         <module>
             <name>mailalerts</name>
             <displayName><![CDATA[Mail alerts]]></displayName>
-            <version><![CDATA[2.4]]></version>
+            <version><![CDATA[2.5]]></version>
             <description><![CDATA[Sends e-mail notifications to customers and merchants.]]></description>
             <author><![CDATA[PrestaShop]]></author>
             <tab><![CDATA[administration]]></tab>
diff --git a/modules/mailalerts/upgrade/install-2.5.php b/modules/mailalerts/upgrade/install-2.5.php
index 8696a4a2b..440e5512a 100644
--- a/modules/mailalerts/upgrade/install-2.5.php
+++ b/modules/mailalerts/upgrade/install-2.5.php
@@ -6,24 +6,9 @@ if (!defined('_PS_VERSION_'))
 function upgrade_module_2_5($object)
 {
 	return Db::getInstance()->execute('
-		ALTER TABLE '._DB_PREFIX_.'mailalert_customer_oos 
-		ADD '.mailalerts_stripslashes_field('id_lang').' INT( 10 ) UNSIGNED NOT NULL , 
+		ALTER TABLE `'._DB_PREFIX_.'mailalert_customer_oos` 
+		ADD `id_lang` INT( 10 ) UNSIGNED NOT NULL , 
 		DROP PRIMARY KEY , 
-		ADD PRIMARY KEY ( 
-			'.mailalerts_stripslashes_field('id_customer').' , 
-			'.mailalerts_stripslashes_field('customer_email').' , 
-			'.mailalerts_stripslashes_field('id_product').' , 
-			'.mailalerts_stripslashes_field('id_product_attribute').' , 
-			'.mailalerts_stripslashes_field('id_shop').' 
-		)'
-	);
-}
-
-function mailalerts_stripslashes_field($field)
-{
-	$quotes = array('"\\\'"', '"\'"');
-	$dquotes = array('\'\\\\"\'', '\'"\'');
-	$backslashes = array('"\\\\\\\\"', '"\\\\"');
-
-	return '`'.bqSQL($field).'` = replace(replace(replace(`'.bqSQL($field).'`, '.$quotes[0].', '.$quotes[1].'), '.$dquotes[0].', '.$dquotes[1].'), '.$backslashes[0].', '.$backslashes[1].')';
+		ADD PRIMARY KEY (`id_customer` , `customer_email` , `id_product` , `id_product_attribute` , `id_shop`)
+	');
 }
\ No newline at end of file