diff --git a/lib/fediblock.js b/lib/fediblock.js
index ed0dde9..f6ddde7 100644
--- a/lib/fediblock.js
+++ b/lib/fediblock.js
@@ -230,7 +230,7 @@ module.exports = async (client, apex, app) => {
 						instancessorted = instancesall.sort((a, b) => a < b ? -1 : a > b ? 1 : 0),
 						parts = [],
 						split = workers,
-						chunkSize = Math.floor(instancessorted.length / split)
+						chunkSize = Math.ceil(instancessorted.length / split)
 					await scanIndex(server, instancesall)
 					if (instancesall.length > 0) {
 						if (!servers || servers.length === 0) {