diff --git a/report_py3o/py3o_parser.py b/report_py3o/py3o_parser.py
index 373c7718..e32e1af4 100644
--- a/report_py3o/py3o_parser.py
+++ b/report_py3o/py3o_parser.py
@@ -180,7 +180,7 @@ class Py3oParser(report_sxw):
             # we do nice chunked reading from the network...
             chunk_size = 1024
             with NamedTemporaryFile(
-                    suffix=filetype.human_ext,
+                    suffix=filetype,
                     prefix='py3o-template-'
             ) as fd:
                 for chunk in r.iter_content(chunk_size):
diff --git a/report_py3o/tests/test_report_py3o.py b/report_py3o/tests/test_report_py3o.py
index fb71d8e9..ee0f594b 100644
--- a/report_py3o/tests/test_report_py3o.py
+++ b/report_py3o/tests/test_report_py3o.py
@@ -19,9 +19,21 @@ class TestReportPy3o(TransactionCase):
                         'Py3oParser.create_single_pdf') as patched_pdf:
             # test the call the the create method inside our custom parser
             report.render_report(self.env.user.ids,
-                            report.report_name,
-                            {})
+                                 report.report_name,
+                                 {})
             self.assertEqual(1, patched_pdf.call_count)
         res = report.render_report(
             self.env.user.ids, report.report_name, {})
         self.assertTrue(res)
+        py3o_server = self.env['py3o.server'].create({"url": "http://dummy"})
+        # check the call to the fusion server
+        report.write({"py3o_filetype": "pdf",
+                      "py3o_server_id": py3o_server.id})
+        with mock.patch('requests.post') as patched_post:
+            magick_response = mock.MagicMock()
+            magick_response.status_code = 200
+            patched_post.return_value = magick_response
+            magick_response.iter_content.return_value = "test result"
+            res = report.render_report(
+                self.env.user.ids, report.report_name, {})
+            self.assertEqual(('test result', '.pdf'), res)