From 6391a68fd59fccec64c7f68a3daf2584f4e66a2e Mon Sep 17 00:00:00 2001
From: Paulus Schoutsen <balloob@gmail.com>
Date: Fri, 18 Oct 2019 18:11:54 -0700
Subject: [PATCH] Better header check for OAuth2 helper (#27897)

---
 homeassistant/helpers/config_entry_oauth2_flow.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/homeassistant/helpers/config_entry_oauth2_flow.py b/homeassistant/helpers/config_entry_oauth2_flow.py
index 043a28cac27..7fb954378ee 100644
--- a/homeassistant/helpers/config_entry_oauth2_flow.py
+++ b/homeassistant/helpers/config_entry_oauth2_flow.py
@@ -392,7 +392,7 @@ async def async_oauth2_request(
         url,
         **kwargs,
         headers={
-            **kwargs.get("headers", {}),
+            **(kwargs.get("headers") or {}),
             "authorization": f"Bearer {token['access_token']}",
         },
     )