diff --git a/Lib/http/client.py b/Lib/http/client.py
index 0234199dfa9207a..9d1e7a0d8e19e5c 100644
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -211,7 +211,7 @@ def parse_headers(fp, _class=HTTPMessage):
         if line in (b'\r\n', b'\n', b''):
             break
     hstring = b''.join(headers).decode('iso-8859-1')
-    return email.parser.Parser(_class=_class).parsestr(hstring)
+    return email.parser.Parser(_class=_class).parsestr(hstring, headersonly=True)
 
 
 class HTTPResponse(io.BufferedIOBase):