diff --git a/requests/utils.py b/requests/utils.py
index 7b7ff0a7..4d648bc5 100644
--- a/requests/utils.py
+++ b/requests/utils.py
@@ -548,7 +548,7 @@ def default_user_agent(name="python-requests"):
 def default_headers():
     return CaseInsensitiveDict({
         'User-Agent': default_user_agent(),
-        'Accept-Encoding': ', '.join(('gzip', 'deflate', 'compress')),
+        'Accept-Encoding': ', '.join(('gzip', 'deflate')),
         'Accept': '*/*'
     })