diff --git a/src/repl.rs b/src/repl.rs
index af084b5..fdebf5d 100644
--- a/src/repl.rs
+++ b/src/repl.rs
@@ -20,7 +20,7 @@ pub fn repl(ast_print: bool) {
                     println!("bye");
                     break;
                 }
-                
+
                 let mut parser = Parser::new(line);
                 let value = parser.init().and_then(|ast| {
                     if ast_print {
diff --git a/src/variables.rs b/src/variables.rs
index 499c634..962f4b6 100644
--- a/src/variables.rs
+++ b/src/variables.rs
@@ -137,9 +137,9 @@ impl Value {
         Rc::new(RefCell::new(match self {
             Value::Nul => Value::Nul,
             Value::Str(s) => Value::Int(s.as_bytes()[index.to_i32() as usize] as i32),
-            Value::Int(i) => Value::Int(
-                (format!("{}", i).as_bytes()[index.to_i32() as usize] - b'0') as i32,
-            ),
+            Value::Int(i) => {
+                Value::Int((format!("{}", i).as_bytes()[index.to_i32() as usize] - b'0') as i32)
+            }
             Value::Bool(b) => Value::Int(
                 format!("{}", b)
                     .chars()