diff --git a/discord/file.py b/discord/file.py
index 2d7260ff1..e3934e7bc 100644
--- a/discord/file.py
+++ b/discord/file.py
@@ -137,8 +137,8 @@ class File:
         to an uploaded file via URL.
 
         .. info::
-            Due to Discord's filename processing it can only reference files
-            that have fully ASCII filenames.
+            Due to Discord's filename processing, the filename must be ASCII aphanumeric
+            with underscores, dashes, and periods.
 
         .. versionadded:: 2.6
         """