diff --git a/mercurial/statprof.py b/mercurial/statprof.py
--- a/mercurial/statprof.py
+++ b/mercurial/statprof.py
@@ -766,7 +766,7 @@
 
     if path in _pathcache:
         return _pathcache[path]
-    hgpath = pycompat.fsencode(encoding.__file__).rsplit(os.sep, 2)[0]
+    hgpath = encoding.__file__.rsplit(os.sep, 2)[0]
     for p in [hgpath] + sys.path:
         prefix = p + os.sep
         if path.startswith(prefix):