diff --git a/servefiles/README.md b/servefiles/README.md
index 4438b3d..9308ea8 100644
--- a/servefiles/README.md
+++ b/servefiles/README.md
@@ -4,4 +4,4 @@ Simple Python script for serving local files to FBI's remote installer. Requires
 
 **Usage**: python servefiles.py (3ds ip) (file / directory) \[host ip\] \[host port\]
 
-  - Supported file extensions: .cia, .tik, .cetk
+  - Supported file extensions: .cia, .tik, .cetk, .3dsx