diff --git a/crates/fayalite-proc-macros-impl/src/hdl_type_common.rs b/crates/fayalite-proc-macros-impl/src/hdl_type_common.rs
index 506c153..3f3f817 100644
--- a/crates/fayalite-proc-macros-impl/src/hdl_type_common.rs
+++ b/crates/fayalite-proc-macros-impl/src/hdl_type_common.rs
@@ -4163,7 +4163,13 @@ impl MakeHdlTypeExpr for ParsedExpr {
         match self {
             ParsedExpr::Delimited(expr) => expr.make_hdl_type_expr(context),
             ParsedExpr::NamedParamConst(expr) => expr.make_hdl_type_expr(context),
-            ParsedExpr::Other(expr) => (**expr).clone(),
+            ParsedExpr::Other(expr) => {
+                let span = expr.span();
+                let const_usize = known_items::ConstUsize(span);
+                parse_quote_spanned! {expr.span()=>
+                    #const_usize::<{ #expr }>
+                }
+            }
         }
     }
 }