diff --git a/README.md b/README.md
index aca9470..879a8ab 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Supported file formats:
   - 3ds (with textures)
   - obj, mtl (with textures)
   - stl (ascii and binary)
-  - off
+  - off (only ascii)
 
 ## Website