diff --git a/src/image_loader.rs b/src/image_loader.rs
index decd115..de0f744 100644
--- a/src/image_loader.rs
+++ b/src/image_loader.rs
@@ -10,7 +10,7 @@ use dds::DDS;
 use exr::prelude as exrs;
 use exr::prelude::*;
 use image::{DynamicImage, EncodableLayout, GrayAlphaImage, GrayImage, RgbImage, RgbaImage};
-use jxl_oxide::{JxlImage, PixelFormat, RenderResult};
+use jxl_oxide::{JxlImage, PixelFormat};
 use quickraw::{data, DemosaicingMethod, Export, Input, Output, OutputType};
 use rayon::prelude::{IntoParallelIterator, IntoParallelRefIterator, ParallelIterator};
 use rgb::*;
@@ -277,7 +277,7 @@ pub fn open_image(img_location: &Path) -> Result<Receiver<Frame>> {
             //TODO this needs to be a thread
 
             fn foo(img_location: &Path, frame_sender: Sender<Frame>) -> Result<()> {
-                let mut image = JxlImage::builder()
+                let image = JxlImage::builder()
                     .open(img_location)
                     .map_err(|e| anyhow!("{e}"))?;
                 debug!("{:#?}", image.image_header().metadata);
diff --git a/src/ktx2_loader/image.rs b/src/ktx2_loader/image.rs
index 2b282e0..adf1050 100644
--- a/src/ktx2_loader/image.rs
+++ b/src/ktx2_loader/image.rs
@@ -379,7 +379,7 @@ impl TextureFormatPixelInfo for TextureFormat {
     fn pixel_size(&self) -> usize {
         let info = self;
         match info.block_dimensions() {
-            (1, 1) => info.block_size(None).unwrap() as usize,
+            (1, 1) => info.block_copy_size(None).unwrap() as usize,
             _ => panic!("Using pixel_size for compressed textures is invalid"),
         }
     }
diff --git a/src/ktx2_loader/ktx2.rs b/src/ktx2_loader/ktx2.rs
index 7361c1a..804c721 100644
--- a/src/ktx2_loader/ktx2.rs
+++ b/src/ktx2_loader/ktx2.rs
@@ -154,7 +154,7 @@ pub fn ktx2_buffer_to_image(
                         texture_format_info.block_dimensions().1,
                     );
                     // Texture is not a depth or stencil format, it is possible to pass `None` and unwrap
-                    let block_bytes = texture_format_info.block_size(None).unwrap();
+                    let block_bytes = texture_format_info.block_copy_size(None).unwrap();
 
                     let transcoder = LowLevelUastcTranscoder::new();
                     for (level, level_data) in levels.iter().enumerate() {
@@ -232,7 +232,7 @@ pub fn ktx2_buffer_to_image(
         texture_format_info.block_dimensions().1 as usize,
     );
     // Texture is not a depth or stencil format, it is possible to pass `None` and unwrap
-    let block_bytes = texture_format_info.block_size(None).unwrap() as usize;
+    let block_bytes = texture_format_info.block_copy_size(None).unwrap() as usize;
 
     let mut wgpu_data = vec![Vec::default(); (layer_count * face_count) as usize];
     for (level, level_data) in levels.iter().enumerate() {