lib/PublicInbox/Feed.pm       | 2 +-
 lib/PublicInbox/V2Writable.pm | 4 ++--

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index d7df07ee9c4577a1d15fe5410f68e6bdd68ee3e2..b373a1ebc83dd99b7467456ce28eba03fb47b26a 100644
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -116,7 +116,7 @@ 	# leave us with filenames with spaces in them..
 	my $log = $ibx->git->popen(qw/log
 				--no-notes --no-color --raw -r
 				--no-abbrev --abbrev-commit/,
-				"--format=%h", $range);
+				"--format=%H", $range);
 	my %deleted; # only an optimization at this point
 	my $last;
 	my $last_commit;
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 2cc87305668256709f773415f750e5f52653503c..1316d628491f576c0096b3be215826d94e03aae9 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -788,7 +788,7 @@ 		}
 		$ranges->[$i] = $range;
 
 		# can't use 'rev-list --count' if we use --diff-filter
-		my $fh = $git->popen(qw(log --pretty=tformat:%h
+		my $fh = $git->popen(qw(log --pretty=tformat:%H
 				--no-notes --no-color --no-renames
 				--diff-filter=AM), $range, '--', 'm');
 		++$regen_max while <$fh>;
@@ -865,7 +865,7 @@ 	my ($min, $max) = $mm_tmp->minmax;
 	my $regen = $self->index_prepare($opts, $epoch_max, $ranges);
 	$$regen += $max if $max;
 	my $D = {};
-	my @cmd = qw(log --raw -r --pretty=tformat:%h
+	my @cmd = qw(log --raw -r --pretty=tformat:%H
 			--no-notes --no-color --no-abbrev --no-renames);
 
 	# work backwards through history