fix issue tornadoweb#2448

bdarnell · Sep 16, 2018 · 3846df6 · 3846df6
1 parent 33f7c28
commit 3846df6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tornado/http1connection.py b/tornado/http1connection.py
@@ -411,7 +411,7 @@ def write_headers(self, start_line, headers, chunk=None, callback=None):
             if chunk:
                 data += self._format_chunk(chunk)
             self._pending_write = self.stream.write(data)
-            self._pending_write.add_done_callback(self._on_write_complete)
+            future_add_done_callback(self._pending_write, self._on_write_complete)
         return future
 
     def _format_chunk(self, chunk):