diff --git a/hgext/automv.py b/hgext/automv.py
--- a/hgext/automv.py
+++ b/hgext/automv.py
@@ -64,7 +64,8 @@
         if threshold > 0:
             match = scmutil.match(repo[None], pats, opts)
             added, removed = _interestingfiles(repo, match)
-            renames = _findrenames(repo, match, added, removed,
+            uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
+            renames = _findrenames(repo, uipathfn, added, removed,
                                    threshold / 100.0)
 
     with repo.wlock():
@@ -89,7 +90,7 @@
 
     return added, removed
 
-def _findrenames(repo, matcher, added, removed, similarity):
+def _findrenames(repo, uipathfn, added, removed, similarity):
     """Find what files in added are really moved files.
 
     Any file named in removed that is at least similarity% similar to a file
@@ -103,7 +104,7 @@
             if repo.ui.verbose:
                 repo.ui.status(
                     _('detected move of %s as %s (%d%% similar)\n') % (
-                        matcher.rel(src), matcher.rel(dst), score * 100))
+                        uipathfn(src), uipathfn(dst), score * 100))
             renames[dst] = src
     if renames:
         repo.ui.status(_('detected move of %d files\n') % len(renames))