--- a/mercurial/revlogutils/docket.py	Thu Dec 01 02:26:34 2022 +0100
+++ b/mercurial/revlogutils/docket.py	Fri Dec 02 02:03:49 2022 +0100
@@ -90,7 +90,7 @@
 # * 8 bytes: pending size of data
 # * 8 bytes: pending size of sidedata
 # * 1 bytes: default compression header
-S_HEADER = struct.Struct(constants.INDEX_HEADER_FMT + b'BBBBBBLLLLLLc')
+S_HEADER = struct.Struct(constants.INDEX_HEADER_FMT + b'BBBBBBQQQQQQc')
 # * 1 bytes: size of index uuid
 # * 8 bytes: size of file
 S_OLD_UID = struct.Struct('>BL')