diff --git a/www/conservancy/middleware.py b/www/conservancy/middleware.py
index 4aea2acb3b3a99cce1e9eadb106dc7c655166fd3..17f9528318acb38f668730dca4bdc1661463e6dc 100644
--- a/www/conservancy/middleware.py
+++ b/www/conservancy/middleware.py
@@ -1,8 +1,11 @@
 from django import http
 from django.conf import settings
 from django.utils.cache import patch_response_headers
+from django.utils.deprecation import MiddlewareMixin
 
-class ForceCanonicalHostnameMiddleware:
+
+class ForceCanonicalHostnameMiddleware(MiddlewareMixin):
+    # MiddlewareMixin provides compatiiblity for Django 1.10 style middleware.
 
     def process_request(self, request):
         """Modified common middleware for Conservancy site