diff --git a/Lib/httplib.py b/Lib/httplib.py
index 13629c4a965..5d16e53c4c3 100644
--- a/Lib/httplib.py
+++ b/Lib/httplib.py
@@ -748,7 +748,11 @@ class HTTPConnection:
             line = response.fp.readline(_MAXLINE + 1)
             if len(line) > _MAXLINE:
                 raise LineTooLong("header line")
-            if line == '\r\n': break
+            if not line:
+                # for sites which EOF without sending trailer
+                break
+            if line == '\r\n':
+                break
 
 
     def connect(self):