diff --git a/src/main.rs b/src/main.rs
index f4ee1d1..aef4c3f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -313,6 +313,7 @@ fn convert(file_thing:std::fs::DirEntry) -> BoxResult<()>{
         Err(error::Error::new("Unknown texture format"))?
     };
 
+    //this fails if the image dimensions are not a multiple of 4
     let dds = image_dds::dds_from_image(
         &image,
         image_dds::ImageFormat::BC7Unorm,