diff --git a/scrapy/settings/default_settings.py b/scrapy/settings/default_settings.py
index 18d5ebbbb..a6cfca656 100644
--- a/scrapy/settings/default_settings.py
+++ b/scrapy/settings/default_settings.py
@@ -91,7 +91,7 @@ DOWNLOADER_MIDDLEWARES = {}
 DOWNLOADER_MIDDLEWARES_BASE = {
     # Engine side
     'scrapy.downloadermiddlewares.robotstxt.RobotsTxtMiddleware': 100,
-    'scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware': 300,
+    'scrapy.downloadermiddlewares.auth.AuthMiddleware': 300,
     'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware': 350,
     'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware': 400,
     'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware': 500,