--- a/hgext/remotefilelog/remotefilelogserver.py	Tue Nov 13 18:08:17 2018 +0300
+++ b/hgext/remotefilelog/remotefilelogserver.py	Tue Nov 13 18:08:55 2018 +0300
@@ -234,7 +234,7 @@
 
             f = None
             try:
-                f = util.atomictempfile(filecachepath, "w")
+                f = util.atomictempfile(filecachepath, "wb")
                 f.write(text)
             except (IOError, OSError):
                 # Don't abort if the user only has permission to read,
@@ -246,7 +246,7 @@
         finally:
             os.umask(oldumask)
     else:
-        with open(filecachepath, "r") as f:
+        with open(filecachepath, "rb") as f:
             text = f.read()
     return text