diff --git a/install-dev/upgrade/php/remove_tab.php b/install-dev/upgrade/php/remove_tab.php
index 2a0c53902..9ade12ee5 100644
--- a/install-dev/upgrade/php/remove_tab.php
+++ b/install-dev/upgrade/php/remove_tab.php
@@ -29,6 +29,6 @@ function remove_tab($tabname)
 	Db::getInstance()->execute('
 	DELETE t, l
 	FROM `'._DB_PREFIX_.'tab` t LEFT JOIN `'._DB_PREFIX_.'tab_lang` l ON (t.id_tab = l.id_tab)
-	WHERE t.`class_name` = '.pSQL($tabname));
+	WHERE t.`class_name` = "'.pSQL($tabname).'"');
 }
 
diff --git a/install-dev/upgrade/sql/1.5.6.0.sql b/install-dev/upgrade/sql/1.5.6.0.sql
index 08f15d8c4..3b03e96ed 100644
--- a/install-dev/upgrade/sql/1.5.6.0.sql
+++ b/install-dev/upgrade/sql/1.5.6.0.sql
@@ -10,4 +10,6 @@ ALTER TABLE `PREFIX_manufacturer_lang` CHANGE `short_description` `short_descrip
 /* PHP:add_module_to_hook(blockmyaccount, actionModuleRegisterHookAfter); */;
 /* PHP:add_module_to_hook(blockmyaccountfooter, actionModuleRegisterHookAfter); */;
 /* PHP:add_module_to_hook(blockmyaccount, actionModuleUnRegisterHookAfter); */;
-/* PHP:add_module_to_hook(blockmyaccountfooter, actionModuleUnRegisterHookAfter); */;
\ No newline at end of file
+/* PHP:add_module_to_hook(blockmyaccountfooter, actionModuleUnRegisterHookAfter); */;
+/* PHP:remove_tab(AdminRangePrice); */;
+/* PHP:remove_tab(AdminRangeWeight); */;
\ No newline at end of file