diff --git a/pywb/rewrite/rewrite_live.py b/pywb/rewrite/rewrite_live.py
index 61113114..2510aa10 100644
--- a/pywb/rewrite/rewrite_live.py
+++ b/pywb/rewrite/rewrite_live.py
@@ -21,7 +21,7 @@ class LiveRewriter(object):
                          ('HTTP_ACCEPT', 'Accept'),
                          ('HTTP_ACCEPT_LANGUAGE', 'Accept-Language'),
                          ('HTTP_ACCEPT_CHARSET', 'Accept-Charset'),
-                         ('HTTP_REFERER', 'Referer'),
+                         ('REL_REFERER', 'Referer'),
                         ]
 
     def __init__(self, defmod=''):
diff --git a/pywb/webapp/live_rewrite_handler.py b/pywb/webapp/live_rewrite_handler.py
index 46392dc1..8ed37722 100644
--- a/pywb/webapp/live_rewrite_handler.py
+++ b/pywb/webapp/live_rewrite_handler.py
@@ -58,7 +58,7 @@ class RewriteHandler(WbUrlHandler):
 
         ref_wburl_str = wbrequest.extract_referrer_wburl_str()
         if ref_wburl_str:
-            wbrequest.env['HTTP_REFERER'] = WbUrl(ref_wburl_str).url
+            wbrequest.env['REL_REFERER'] = WbUrl(ref_wburl_str).url
 
 
         result = self.rewriter.fetch_request(url, wbrequest.urlrewriter,