lib/PublicInbox/ExtSearchIdx.pm | 1 +
 lib/PublicInbox/MiscIdx.pm      | 1 +

diff --git a/lib/PublicInbox/ExtSearchIdx.pm b/lib/PublicInbox/ExtSearchIdx.pm
index 708f8a3e96cf4aa32674bf3f2a91dfa8288c4f0c..890ac28283d27f1050e9e605743e95b0ec5d2e23 100644
--- a/lib/PublicInbox/ExtSearchIdx.pm
+++ b/lib/PublicInbox/ExtSearchIdx.pm
@@ -311,6 +311,7 @@ 		return;
 	}
 	index_todo($self, $sync, $_) for @{delete($sync->{todo}) // []};
 	$self->{midx}->index_ibx($ibx);
+	$ibx->git->cleanup; # done with this inbox, now
 }
 
 sub eidx_sync { # main entry point
diff --git a/lib/PublicInbox/MiscIdx.pm b/lib/PublicInbox/MiscIdx.pm
index 9dcc96b7e8cb4a06c6fc64262051d57ce71aa5a2..acb49ce79acf041f43f76f050a07572d634e6c1b 100644
--- a/lib/PublicInbox/MiscIdx.pm
+++ b/lib/PublicInbox/MiscIdx.pm
@@ -107,6 +107,7 @@ 			my $git = $ibx->git_epoch($epoch) or return;
 			if (my $ent = $git->manifest_entry($epoch, $desc)) {
 				$data->{"$pfx$epoch.git"} = $ent;
 			}
+			$git->cleanup; # ->modified starts cat-file --batch
 		}
 	} elsif (my $ent = $ibx->git->manifest_entry) { # v1
 		$data->{"/$ibx->{name}"} = $ent;