diff --git a/report_qweb_custom_renderer/models/ir_actions_report.py b/report_qweb_custom_renderer/models/ir_actions_report.py
index 6aa9d21778..ba17411af7 100644
--- a/report_qweb_custom_renderer/models/ir_actions_report.py
+++ b/report_qweb_custom_renderer/models/ir_actions_report.py
@@ -3,7 +3,7 @@
 import logging
 import time
 
-from odoo import api, fields, models
+from odoo import fields, models
 
 _logger = logging.getLogger(__name__)
 
@@ -17,8 +17,7 @@ class IrActionsReport(models.Model):
         string="PDF Engine",
     )
 
-    @api.multi
-    def render_qweb_pdf(self, res_ids=None, data=None):
+    def _render_qweb_pdf(self, report_ref, res_ids=None, data=None):
         qweb_pdf_engine = "wkhtmltopdf"
         qweb_pdf_engine = "weasyprint"
 
@@ -27,12 +26,14 @@ def render_qweb_pdf(self, res_ids=None, data=None):
         _logger.info("========================================")
         time_1 = time.time()
         if qweb_pdf_engine == "wkhtmltopdf":
-            result = super(IrActionsReport, self).render_qweb_pdf(
+            result = super()._render_qweb_pdf(
+                report_ref,
                 res_ids=res_ids,
                 data=data,
             )
         else:
             result = getattr(self, "_render_qweb_pdf_%s" % qweb_pdf_engine)(
+                report_ref,
                 res_ids=res_ids,
                 data=data,
             )
diff --git a/report_qweb_weasyprint_renderer/models/ir_actions_report.py b/report_qweb_weasyprint_renderer/models/ir_actions_report.py
index ea261486ec..fd14998fa1 100644
--- a/report_qweb_weasyprint_renderer/models/ir_actions_report.py
+++ b/report_qweb_weasyprint_renderer/models/ir_actions_report.py
@@ -1,12 +1,16 @@
 # Copyright 2018 Therp BV <https://therp.nl>
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
-from odoo import api, fields, models
+import logging
+
+from odoo import fields, models
 
 try:
     from weasyprint import HTML
 except ImportError:
     HTML = None
 
+_logger = logging.getLogger(__name__)
+
 
 class IrActionsReport(models.Model):
     _inherit = "ir.actions.report"
@@ -15,17 +19,21 @@ class IrActionsReport(models.Model):
         selection_add=[("weasyprint", "WeasyPrint")],
     )
 
-    @api.multi
-    def _render_qweb_pdf_weasyprint(self, res_ids=None, data=None):
+    def _render_qweb_pdf_weasyprint(self, report_ref, res_ids=None, data=None):
         data = data or {}
         data["enable_editor"] = (False,)
         context = dict(self.env.context)
         context["qweb_pdf_engine"] = "weasyprint"
 
-        html = self.with_context(**context).render_qweb_html(res_ids, data=data)[0]
+        html = self.with_context(**context)._render_qweb_html(
+            report_ref, res_ids, data=data
+        )
+        with open("/tmp/tralala_weasyprint.html", "wb+") as f:
+            f.write(html[0])
+
         return (
             HTML(
-                string=html,
+                string=html[0],
                 # TODO: pass a custom url fetcher to never actually use the port
                 base_url=self.env["ir.config_parameter"].get_param("report.url")
                 or self.env["ir.config_parameter"].get_param("web.base.url"),