diff --git a/k8s/settings_local.py b/k8s/settings_local.py
index 0e128b1b4cb..0f4ecaa631c 100644
--- a/k8s/settings_local.py
+++ b/k8s/settings_local.py
@@ -19,13 +19,6 @@ def _multiline_to_list(s):
 # Default to "development". Production _must_ set DATATRACKER_SERVER_MODE="production" in the env!
 SERVER_MODE = os.environ.get("DATATRACKER_SERVER_MODE", "development")
 
-# Use X-Forwarded-Proto to determine request.is_secure(). This relies on CloudFlare overwriting the
-# value of the header if an incoming request sets it, which it does:
-# https://developers.cloudflare.com/fundamentals/reference/http-request-headers/#x-forwarded-proto
-# See also, especially the warnings:
-# https://docs.djangoproject.com/en/dev/ref/settings/#secure-proxy-ssl-header
-SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")
-
 # Secrets
 _SECRET_KEY = os.environ.get("DATATRACKER_DJANGO_SECRET_KEY", None)
 if _SECRET_KEY is not None: