diff --git a/crates/core/machine/src/alu/bitwise/mod.rs b/crates/core/machine/src/alu/bitwise/mod.rs
index 28c6dd20..b15e9ad9 100644
--- a/crates/core/machine/src/alu/bitwise/mod.rs
+++ b/crates/core/machine/src/alu/bitwise/mod.rs
@@ -229,7 +229,7 @@ where
         builder.assert_bool(local.is_xor);
         builder.assert_bool(local.is_or);
         builder.assert_bool(local.is_and);
-        builder.assert_bool(local.is_xor);
+        builder.assert_bool(local.is_nor);
         builder.assert_bool(is_real);
     }
 }