diff -r 7200a9d4ea04 -r 88362b8bc476 mercurial/debugcommands.py
--- a/mercurial/debugcommands.py	Fri Feb 03 01:03:45 2023 +0100
+++ b/mercurial/debugcommands.py	Fri Feb 03 01:04:22 2023 +0100
@@ -1907,7 +1907,7 @@
 
     fm = ui.formatter(b'debugindex', opts)
 
-    revlog = getattr(store, b'_revlog', store)
+    revlog = getattr(store, '_revlog', store)
 
     return revlog_debug.debug_index(
         ui,