diff --git a/chain_service/services/file_uploader.py b/chain_service/services/file_uploader.py
index 33c8cc6..58ead49 100644
--- a/chain_service/services/file_uploader.py
+++ b/chain_service/services/file_uploader.py
@@ -18,10 +18,10 @@ class FileUploaderService:
         self.uploaded_file_repository = uploaded_file_repository
 
     async def upload_from_chain(self, chain: Chain):
-        files_to_upload = list()
+        file_urls_to_upload = list()
 
         for action in filter(lambda a: a.action_type == "comment", chain.actions):
-            file_urls_to_upload = [*files_to_upload, *action.file_urls]
+            file_urls_to_upload = [*file_urls_to_upload, *action.file_urls]
 
         for file_url in file_urls_to_upload:
             await self.upload_file_by_url(file_url)