diff --git a/2024/day8.exs b/2024/day8.exs
index 32b7f91..b515444 100755
--- a/2024/day8.exs
+++ b/2024/day8.exs
@@ -5,8 +5,7 @@ defmodule Day8 do
       antennas
       |> find_pairs()
       |> Enum.flat_map(fn pair -> find_antinodes(pair, x, y) end)
-      |> MapSet.new()
-      |> MapSet.union(antinodes)
+      |> Enum.into(antinodes)
     end)
     |> MapSet.size()
   end
@@ -30,8 +29,7 @@ defmodule Day8 do
       antennas
       |> find_pairs()
       |> Enum.flat_map(fn pair -> find_resonant_harmonics(pair, x, y) end)
-      |> MapSet.new()
-      |> MapSet.union(antinodes)
+      |> Enum.into(antinodes)
     end)
     |> MapSet.size()
   end