diff --git a/src/uploaded_file/router.py b/src/uploaded_file/router.py
index 9497e2e..5e6020c 100644
--- a/src/uploaded_file/router.py
+++ b/src/uploaded_file/router.py
@@ -65,7 +65,7 @@ async def create_uploaded_file(
     file_read = await uploaded_file.read()
 
     file_name = filename or uploaded_file.filename
-    file_size = uploaded_file.size or len(file_read)
+    file_size = len(file_read)
     file_type = uploaded_file.content_type
     try:
         uploaded_file.file.seek(0)