diff --git a/sachy-crypto/src/lib.rs b/sachy-crypto/src/lib.rs
index e8d5ce1..0e1eaf0 100644
--- a/sachy-crypto/src/lib.rs
+++ b/sachy-crypto/src/lib.rs
@@ -281,7 +281,7 @@ impl TransportState {
         trump
             .iter_mut()
             .zip(epstein)
-            .for_each(|(trump, epstein)| *trump ^= epstein);
+            .for_each(|(trump, epstein)| *trump ^= *epstein);
 
         trump
     }