diff --git a/pysakoinnin_sahk_asiointi/settings.py b/pysakoinnin_sahk_asiointi/settings.py
index 7d3ac63..fc91376 100644
--- a/pysakoinnin_sahk_asiointi/settings.py
+++ b/pysakoinnin_sahk_asiointi/settings.py
@@ -67,6 +67,7 @@
     "register_number",
     "request",  # WSGIRequest.__str__ may contain query params
     "body",  # request body encoded in JSON in urllib3
+    "httplib_request_kw",  # same as "body"
 ]
 
 sentry_sdk.init(