diff --git a/mercurial/interfaces/dirstate.py b/mercurial/interfaces/dirstate.py
--- a/mercurial/interfaces/dirstate.py
+++ b/mercurial/interfaces/dirstate.py
@@ -67,12 +67,12 @@ class idirstate(interfaceutil.Interface)
         used to get real file paths. Use vfs functions instead.
         """
 
+    def pathto(f, cwd=None):
+        pass
+
     def get_entry(path):
         """return a DirstateItem for the associated path"""
 
-    def pathto(f, cwd=None):
-        pass
-
     def __contains__(key):
         """Check if bytestring `key` is known to the dirstate."""