diff --git a/CHANGELOG.md b/CHANGELOG.md
index b0559aa162..be413fbe3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Unreleased] - 2026-03-04
+
+### Fixed
+
+- Fix SQL syntax error in `getAllPrices()` function causing orders total amount calculation to fail
+
 ## [2.11.4] - 2026-02-23
 
 ### Fixed
diff --git a/inc/order_item.class.php b/inc/order_item.class.php
index 56b33c0651..f9d485c82a 100644
--- a/inc/order_item.class.php
+++ b/inc/order_item.class.php
@@ -1379,11 +1379,9 @@ public function getAllPrices($orders_id)
 
         $criteria = [
             'SELECT' => [
-                'SUM' => [
-                    '`price_ati` AS priceTTC',
-                    '`price_discounted` AS priceHT',
-                    '`price_ati` - `price_discounted` AS priceTVA'
-                ]
+                new \QueryExpression('SUM(`price_ati`) AS priceTTC'),
+                new \QueryExpression('SUM(`price_discounted`) AS priceHT'),
+                new \QueryExpression('SUM(`price_ati` - `price_discounted`) AS priceTVA')
             ],
             'FROM' => self::getTable(),
             'WHERE' => ['plugin_order_orders_id' => $orders_id]