lib/PublicInbox/SearchIdxShard.pm | 2 +-

diff --git a/lib/PublicInbox/SearchIdxShard.pm b/lib/PublicInbox/SearchIdxShard.pm
index 9566d23461bb71e67e967742e375133c51cd5cbf..1333b30529e857b5fb205dc4b24e0c8275b30e66 100644
--- a/lib/PublicInbox/SearchIdxShard.pm
+++ b/lib/PublicInbox/SearchIdxShard.pm
@@ -89,7 +89,7 @@ 			chomp $line;
 			my $eidx_key;
 			if ($line =~ s/\AX=(.+)\0//) {
 				$eidx_key = $1;
-				$v2w->{current_info} =~ s/\0/\\0/;
+				$v2w->{current_info} =~ s/\0/\\0 /;
 			}
 			# n.b. $mid may contain spaces(!)
 			my ($len, $bytes, $num, $oid, $ds, $ts, $tid, $mid)