diff --git a/src/calibre/ebooks/metadata/sources/amazon.py b/src/calibre/ebooks/metadata/sources/amazon.py
index 59c606fea7..22ef9882ec 100644
--- a/src/calibre/ebooks/metadata/sources/amazon.py
+++ b/src/calibre/ebooks/metadata/sources/amazon.py
@@ -834,10 +834,10 @@ class Amazon(Source):
         if self._browser is None:
             self._browser = br = browser(user_agent=random_user_agent(allow_ie=False))
             br.set_handle_gzip(True)
-            # br.addheaders += [
-            #     ('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'),
-            #     ('Upgrade-Insecure-Requests', '1'),
-            # ]
+            br.addheaders += [
+                ('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'),
+                ('Upgrade-Insecure-Requests', '1'),
+            ]
         return self._browser.clone_browser()
 
     def save_settings(self, *args, **kwargs):