diff --git a/src/parser.rs b/src/parser.rs
index 7a1c636..3debcb8 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -64,11 +64,11 @@ impl fmt::Display for ASTNode {
 impl fmt::Display for Expression {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         use self::Expression::*;
-        match self {
-            &Null => write!(f, "null"),
-            &StringLiteral(ref s) => write!(f, "\"{}\"", s),
-            &Number(n) => write!(f, "{}", n),
-            &Lambda(Function { prototype: Prototype { ref name, ref parameters, .. }, .. }) => {
+        match *self {
+            Null => write!(f, "null"),
+            StringLiteral(ref s) => write!(f, "\"{}\"", s),
+            Number(n) => write!(f, "{}", n),
+            Lambda(Function { prototype: Prototype { ref name, ref parameters, .. }, .. }) => {
                 write!(f, "«function: {}, {} arg(s)»", name, parameters.len())
             }
             _ => write!(f, "UNIMPLEMENTED"),