diff --git a/odoo/addons/base/models/ir_actions_report.py b/odoo/addons/base/models/ir_actions_report.py
index 8a954087d4c..529a774a3df 100644
--- a/odoo/addons/base/models/ir_actions_report.py
+++ b/odoo/addons/base/models/ir_actions_report.py
@@ -764,6 +764,8 @@ class IrActionsReport(models.Model):
         self.ensure_one()
         if not data:
             data = {}
+        if isinstance(res_ids, int):
+            res_ids = [res_ids]
         data.setdefault('report_type', 'pdf')
         self_sudo = self.sudo()