diff --git a/docs/en/02_Developer_Guides/14_Files/01_File_Management.md b/docs/en/02_Developer_Guides/14_Files/01_File_Management.md
index e3b41dfba..0025bcfa9 100644
--- a/docs/en/02_Developer_Guides/14_Files/01_File_Management.md
+++ b/docs/en/02_Developer_Guides/14_Files/01_File_Management.md
@@ -124,7 +124,7 @@ As with storage, there are also different ways of loading the content (or proper
 
 ### Additional file types
 
-There may be some file extensions not recognised by the framework, which will return "unknown" on `File::getFileType`.
+SilverStripe has a pre-defined list of common file types. `File::getFileType` will return "unknown" for files outside that list.
 
 You can add your own file extensions and it's description with the following configuration.