1 files changed, 1 insertions, 1 deletions
diff --git a/components/script/dom/imagedata.rs b/components/script/dom/imagedata.rs
index 9e80d86d089..e80914d8aea 100644
--- a/components/script/dom/imagedata.rs
+++ b/components/script/dom/imagedata.rs
@@ -65,7 +65,7 @@ impl ImageData {
         if let Some(jsobject) = opt_jsobject {
             let cx = global.get_cx();
             typedarray!(in(cx) let array_res: Uint8ClampedArray = jsobject);
-            let mut array = array_res
+            let array = array_res
                 .map_err(|_| Error::Type("Argument to Image data is not an Uint8ClampedArray".to_owned()))?;
 
             let byte_len = array.as_slice().len() as u32;