diff --git a/src/semi_avid.rs b/src/semi_avid.rs
index 4cefcdf2ef5008e67be13c3ac5f7c3281b889b23..a0133bcc6af48b04515aa178ebc0c4e85268956b 100644
--- a/src/semi_avid.rs
+++ b/src/semi_avid.rs
@@ -730,7 +730,7 @@ mod tests {
 
         let (k, n) = (3, 6_usize);
 
-        let mut bytes = bytes();
+        let bytes = bytes();
 
         let powers = setup::<Fr, G1Projective>(bytes.len(), &mut rng).unwrap();
         let encoding_mat = Matrix::random(k, n, &mut rng);