diff --git a/app/controllers/concerns/renders_blob.rb b/app/controllers/concerns/renders_blob.rb
index a048445de1d..5a1b1d9f929 100644
--- a/app/controllers/concerns/renders_blob.rb
+++ b/app/controllers/concerns/renders_blob.rb
@@ -28,7 +28,7 @@ module RendersBlob
         plain: blob.data,
         name: blob.name,
         extension: blob.extension,
-        size: blob.size,
+        size: blob.raw_size,
         mime_type: blob.mime_type
       }
     end