diff --git a/mahjong/hand_calculating/divider.py b/mahjong/hand_calculating/divider.py
index c7ea400..0bcfece 100644
--- a/mahjong/hand_calculating/divider.py
+++ b/mahjong/hand_calculating/divider.py
@@ -126,7 +126,7 @@ def _divide_hand_impl(pure_hand: tuple[int, ...], melds: tuple[_Block, ...]) ->
                     combinations.append(all_blocks)
 
         combinations.sort()
-        return tuple(tuple(b for b in blocks) for blocks in combinations)
+        return tuple(tuple(blocks) for blocks in combinations)
 
     @staticmethod
     def _decompose_chiitoitsu(pure_hand: list[int]) -> list[_Block]: