diff --git a/hgext/narrow/narrowcommands.py b/hgext/narrow/narrowcommands.py
--- a/hgext/narrow/narrowcommands.py
+++ b/hgext/narrow/narrowcommands.py
@@ -133,6 +133,7 @@
 def archivenarrowcmd(orig, ui, repo, *args, **opts):
     """Wraps archive command to narrow the default includes."""
     if narrowrepo.REQUIREMENT in repo.requirements:
+        opts = pycompat.byteskwargs(opts)
         repo_includes, repo_excludes = repo.narrowpats
         includes = set(opts.get('include', []))
         excludes = set(opts.get('exclude', []))
@@ -142,6 +143,7 @@
             opts['include'] = includes
         if excludes:
             opts['exclude'] = excludes
+        opts = pycompat.strkwargs(opts)
     return orig(ui, repo, *args, **opts)
 
 def pullbundle2extraprepare(orig, pullop, kwargs):