diff --git a/nac3core/src/codegen/model/core.rs b/nac3core/src/codegen/model/core.rs
index a9da660a..fdf9e6f8 100644
--- a/nac3core/src/codegen/model/core.rs
+++ b/nac3core/src/codegen/model/core.rs
@@ -199,6 +199,7 @@ pub trait Model<'ctx>: fmt::Debug + Clone + Copy {
 pub struct Instance<'ctx, M: Model<'ctx>> {
     /// The model of this instance.
     pub model: M,
+
     /// The value of this instance.
     ///
     /// It is guaranteed the [`BasicType`] of `value` is consistent with that of `model`.