diff --git a/iris-mpc-gpu/src/dot/share_db.rs b/iris-mpc-gpu/src/dot/share_db.rs
index 17ef8213c..7f091ea7d 100644
--- a/iris-mpc-gpu/src/dot/share_db.rs
+++ b/iris-mpc-gpu/src/dot/share_db.rs
@@ -313,7 +313,7 @@ impl ShareDB {
 
         let a0_host = record
             .iter()
-            .map(|&x: &u16| ((x >> 8) as i32 - 128) as i8)
+            .map(|&x| ((x as i8) as i32 - 128) as i8)
             .collect::<Vec<_>>();
 
         let a1_host = record