diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -909,10 +909,9 @@
                     hint=_('either enable obsmarkers to allow unstable '
                            'revisions or use --keep to keep original '
                            'changesets'))
-            if needupdate(repo, rbsrt.state):
-                # update to the current working revision
-                # to clear interrupted merge
-                hg.updaterepo(repo, rbsrt.originalwd, overwrite=True)
+            # update to the current working revision
+            # to clear interrupted merge
+            hg.updaterepo(repo, rbsrt.originalwd, overwrite=True)
             rbsrt._finishrebase()
             return 0
     elif inmemory: