diff --git a/report_py3o/models/py3o_report.py b/report_py3o/models/py3o_report.py
index da905ae77..5c885f339 100644
--- a/report_py3o/models/py3o_report.py
+++ b/report_py3o/models/py3o_report.py
@@ -203,8 +203,10 @@ class Py3oReport(models.TransientModel):
         """ This function to generate our py3o report
         """
         self.ensure_one()
+        action_report = self.ir_actions_report_id
+        filetype = action_report.py3o_filetype
         result_fd, result_path = tempfile.mkstemp(
-            suffix=".ods", prefix="p3o.report.tmp."
+            suffix="." + filetype, prefix="p3o.report.tmp."
         )
         tmpl_data = self.get_template(model_instance)