diff -r c2e284cee333 -r eef9a2d67051 hgext/remotefilelog/remotefilelogserver.py
--- a/hgext/remotefilelog/remotefilelogserver.py	Sun Oct 06 13:17:19 2019 -0400
+++ b/hgext/remotefilelog/remotefilelogserver.py	Sun Oct 06 13:28:56 2019 -0400
@@ -14,6 +14,7 @@
 
 from mercurial.i18n import _
 from mercurial.node import bin, hex, nullid
+from mercurial.pycompat import open
 from mercurial import (
     changegroup,
     changelog,