--- a/mercurial/scmutil.py	Sun Nov 06 04:10:33 2016 +0530
+++ b/mercurial/scmutil.py	Sun Nov 06 04:17:19 2016 +0530
@@ -27,6 +27,7 @@
     osutil,
     pathutil,
     phases,
+    pycompat,
     revset,
     similar,
     util,
@@ -755,7 +756,7 @@
     if _rcpath is None:
         if 'HGRCPATH' in encoding.environ:
             _rcpath = []
-            for p in os.environ['HGRCPATH'].split(os.pathsep):
+            for p in encoding.environ['HGRCPATH'].split(pycompat.ospathsep):
                 if not p:
                     continue
                 p = util.expandpath(p)