diff --git a/main.py b/main.py
index dc6b9bf..f6e637d 100644
--- a/main.py
+++ b/main.py
@@ -87,7 +87,7 @@ def create_img_obj_list(img_url_list, file_name):
     return img_obj_list
 
 
-def set_img_obj_data(img_obj):
+def download_images_to_img_obj(img_obj):
     url = img_obj["url"]
     data = download_image(url)
     if data is None:
@@ -108,7 +108,7 @@ def batch_download_images_to_img_obj_list(img_obj_list):
         None
     """
     with ThreadPoolExecutor() as executor:
-        executor.map(set_img_obj_data, img_obj_list)
+        executor.map(download_images_to_img_obj, img_obj_list)
 
 
 def concatenate_images_vertically(img_obj_list):