diff --git a/lib/index.ml b/lib/index.ml
index c0a370e..6f58476 100644
--- a/lib/index.ml
+++ b/lib/index.ml
@@ -497,7 +497,7 @@ module Search = struct
                 )
             in
             let search_chunk_size =
-              possible_start_count / Task_pool.size
+              max 10 (possible_start_count / Task_pool.size)
             in
             possible_starts
             |> CCList.chunks search_chunk_size