diff --git a/crates/solc-expressions/src/func_call/helper.rs b/crates/solc-expressions/src/func_call/helper.rs
index e9bf44dd..346eb868 100644
--- a/crates/solc-expressions/src/func_call/helper.rs
+++ b/crates/solc-expressions/src/func_call/helper.rs
@@ -257,12 +257,12 @@ pub trait CallerHelper: AnalyzerBackend<Expr = Expression, ExprErr = ExprErr> +
                                 tmp_literals[target_idx] = literals[i];
                             });
                         } else {
-                            tmp_inputs = inputs.clone();
-                            tmp_literals = literals.clone();
+                            tmp_inputs.clone_from(&inputs);
+                            tmp_literals.clone_from(&literals);
                         }
                     } else {
-                        tmp_inputs = inputs.clone();
-                        tmp_literals = literals.clone();
+                        tmp_inputs.clone_from(&inputs);
+                        tmp_literals.clone_from(&literals);
                     }
 
                     params
diff --git a/crates/solc-expressions/src/literal.rs b/crates/solc-expressions/src/literal.rs
index 76dc84fd..5a36a31e 100644
--- a/crates/solc-expressions/src/literal.rs
+++ b/crates/solc-expressions/src/literal.rs
@@ -842,7 +842,7 @@ mod tests {
 
     #[test]
     fn test_hex_literals_multiple() -> Result<()> {
-        let hex_literals = vec![
+        let hex_literals = [
             HexLiteral {
                 hex: "7B".to_string(), // 123 in decimal
                 loc: Loc::File(0, 0, 0),