diff -r fe34c75f62ab -r 6085b7f1536d hgext/narrow/narrowcommands.py
--- a/hgext/narrow/narrowcommands.py	Mon Apr 05 23:54:54 2021 -0400
+++ b/hgext/narrow/narrowcommands.py	Tue Apr 06 10:38:03 2021 +0200
@@ -276,7 +276,7 @@
                 repair.strip(ui, unfi, tostrip, topic=b'narrow', backup=backup)
 
         todelete = []
-        for f, f2, size in repo.store.datafiles():
+        for t, f, f2, size in repo.store.datafiles():
             if f.startswith(b'data/'):
                 file = f[5:-2]
                 if not newmatch(file):