--- a/hgext/rebase.py	Sat Feb 24 16:16:14 2018 +0530
+++ b/hgext/rebase.py	Sat Feb 24 16:18:40 2018 +0530
@@ -593,7 +593,8 @@
                     self.state[oldrev] = newrev
 
         if 'qtip' in repo.tags():
-            updatemq(repo, self.state, self.skipped, **opts)
+            updatemq(repo, self.state, self.skipped,
+                     **pycompat.strkwargs(opts))
 
         # restore original working directory
         # (we do this before stripping)