diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -427,9 +427,8 @@ class rebaseruntime(object):
                         mergemod.mergestate.clean(repo)
                 else:
                     # Skip commit if we are collapsing
-                    repo.dirstate.beginparentchange()
-                    repo.setparents(repo[p1].node())
-                    repo.dirstate.endparentchange()
+                    with repo.dirstate.parentchange():
+                        repo.setparents(repo[p1].node())
                     newnode = None
                 # Update the state
                 if newnode is not None: