lib/PublicInbox/Git.pm | 2 +-

diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index 8ee04e17b511ca1b7c470aa05ea7ce30f26ac033..0ace907e304896728f8c013c29972b9e3308a6d1 100644
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -347,7 +347,7 @@ 	my $modified = 0;
 	my $fh = popen($self, qw(rev-parse --branches));
 	cat_async_begin($self);
 	local $/ = "\n";
-	foreach my $oid (<$fh>) {
+	while (my $oid = <$fh>) {
 		chomp $oid;
 		cat_async($self, $oid, \&extract_cmt_time, \$modified);
 	}