diff --git a/src/plateau2minecraft/converter.py b/src/plateau2minecraft/converter.py
index ccdcb19..cec1200 100644
--- a/src/plateau2minecraft/converter.py
+++ b/src/plateau2minecraft/converter.py
@@ -67,14 +67,16 @@ def build_region(self, output: Path, origin: tuple[float, float, float] | None =
 
         stone = Block("minecraft", "stone")
 
-        # data/output/world_data/region/フォルダの中身を削除
+        # {output}/world_data/region/フォルダの中身を削除
         # フォルダが存在しない場合は、フォルダを作成する
         # フォルダが存在する場合は、フォルダの中身を削除する
-        if os.path.exists("data/output/world_data/region"):
-            for file in os.listdir("data/output/world_data/region"):
-                os.remove(f"data/output/world_data/region/{file}")
+        output_region_path = os.path.join(output, "world_data/region")
+
+        if os.path.exists(output_region_path):
+            for file in os.listdir(output_region_path):
+                os.remove(os.path.join(output_region_path,file))
         else:
-            os.makedirs("data/output/world_data/region", exist_ok=True)
+            os.makedirs(output_region_path, exist_ok=True)
 
         for block_id, points in standardized_blocks.items():
             region = EmptyRegion(0, 0)
@@ -86,7 +88,7 @@ def build_region(self, output: Path, origin: tuple[float, float, float] | None =
                 except OutOfBoundsCoordinates:
                     continue
             print(f"save: {block_id}")
-            region.save(f"{output}/world_data/region/{block_id}")
+            region.save(os.path.join(output_region_path, block_id))
 
     def _get_world_origin(self, vertices):
         min_x = min(vertices[:, 0])