diff -r 000130cfafb6 -r fff5942d445f mercurial/bundle2.py
--- a/mercurial/bundle2.py	Thu Nov 25 18:33:51 2021 +0100
+++ b/mercurial/bundle2.py	Fri Nov 26 11:53:54 2021 +0100
@@ -2419,7 +2419,7 @@
             op.records.add(b'bookmarks', record)
     else:
         raise error.ProgrammingError(
-            b'unkown bookmark mode: %s' % bookmarksmode
+            b'unknown bookmark mode: %s' % bookmarksmode
         )