diff --git a/crates/irust/src/utils.rs b/crates/irust/src/utils.rs
index 59a40d9..6260342 100644
--- a/crates/irust/src/utils.rs
+++ b/crates/irust/src/utils.rs
@@ -296,7 +296,7 @@ pub fn ctrlc_cancel(process: &mut std::process::Child) -> Result<()> {
                     }) => {
                         use std::io::Write;
                         // Ignore write errors (process might have ended)
-                        let _ = process.stdin.as_mut().unwrap().write_all(&[b'\n']);
+                        let _ = process.stdin.as_mut().unwrap().write_all(b"\n");
                     }
                     _ => (),
                 }
diff --git a/crates/irust_repl/examples/re/main.rs b/crates/irust_repl/examples/re/main.rs
index 63c4d70..a4a855c 100644
--- a/crates/irust_repl/examples/re/main.rs
+++ b/crates/irust_repl/examples/re/main.rs
@@ -55,9 +55,13 @@ fn main() -> Result<()> {
             let mut code = message.code.trim();
             // detect `!irust` special comment
             if code.starts_with("//") && code.contains("!irust") {
-                code = code.splitn(2, "!irust").nth(1).expect("checked").trim();
+                code = code
+                    .split_once("!irust")
+                    .map(|x| x.1)
+                    .expect("checked")
+                    .trim();
             }
-            if code.ends_with(';') || is_a_statement(&code) {
+            if code.ends_with(';') || is_a_statement(code) {
                 let EvalResult { output, status } = repl.eval_check(code.to_owned())?;
                 if !status.success() {
                     let output = serde_json::to_string(&Action::Eval {
@@ -69,7 +73,7 @@ fn main() -> Result<()> {
                     return Ok(());
                 }
                 // No error, insert the code
-                repl.insert(&code);
+                repl.insert(code);
                 let output = serde_json::to_string(&Action::Insert)?;
                 println!("{output}");
             } else if code.starts_with(":add") {