diff --git a/src/frontend.rs b/src/frontend.rs
index 353dc27..4ef94e8 100644
--- a/src/frontend.rs
+++ b/src/frontend.rs
@@ -131,7 +131,7 @@ fn lower_process_statement(
             let next_expr_wire = lower_expression(ctx, module, &assig.expr)?;
 
             rtlil::CaseRule {
-                assign: vec![(next_sig.clone(), next_expr_wire)],
+                assign: vec![(next_sig, next_expr_wire)],
                 switches: vec![],
             }
         }
@@ -233,7 +233,7 @@ fn desugar_expression<'a>(expr: parser::Expression<'a>) -> parser::Expression<'a
         parser::Expression::Ident(_) => expr,
         parser::Expression::Literal(_) => expr,
         parser::Expression::Call(mut call) => {
-            let new_args = call.args.into_iter().map(|argex| desugar_expression(argex)).collect();
+            let new_args = call.args.into_iter().map(desugar_expression).collect();
             call.args = new_args;
             parser::Expression::Call(call)
         },