diff --git a/lib/pleroma/upload/filter/exiftool/read_description.ex b/lib/pleroma/upload/filter/exiftool/read_description.ex
index 3f7b7c798..a69f79124 100644
--- a/lib/pleroma/upload/filter/exiftool/read_description.ex
+++ b/lib/pleroma/upload/filter/exiftool/read_description.ex
@@ -4,9 +4,9 @@
 
 defmodule Pleroma.Upload.Filter.Exiftool.ReadDescription do
   @moduledoc """
-  Gets the description from the related EXIF tags and provides them in the response if no description is provided yet.
-  It will first check ImageDescription, when that's too long or empty, it will check iptc:Caption-Abstract.
-  When the description is too long (see `:instance, :description_limit`), an empty string is returned.
+  Gets a valid description from the related EXIF tags and provides them in the response if no description is provided yet.
+  It will first check ImageDescription, when that doesn't probide a valid description, it will check iptc:Caption-Abstract.
+  A valid description means the fields are filled in and not too long (see `:instance, :description_limit`).
   """
   @behaviour Pleroma.Upload.Filter