diff --git a/addons/spreadsheet/static/src/o_spreadsheet/migration.js b/addons/spreadsheet/static/src/o_spreadsheet/migration.js
index 0315db35ba1..e326675adec 100644
--- a/addons/spreadsheet/static/src/o_spreadsheet/migration.js
+++ b/addons/spreadsheet/static/src/o_spreadsheet/migration.js
@@ -18,7 +18,7 @@ const MAP = {
 const dmyRegex = /^([0|1|2|3][1-9])\/(0[1-9]|1[0-2])\/(\d{4})$/i;
 
 export function migrate(data) {
-    let _data = load(data);
+    let _data = load(data, !!odoo.debug);
     const version = _data.odooVersion || 0;
     if (version < 1) {
         _data = migrate0to1(_data);