diff --git a/src/syntax/ast.rs b/src/syntax/ast.rs
index 33803a7..6541acc 100644
--- a/src/syntax/ast.rs
+++ b/src/syntax/ast.rs
@@ -21,12 +21,7 @@ impl<'a> Display for Expr<'a> {
         match self {
             Self::List(list) => write_seq(f, list, "(", ")"),
             Self::Vector(vec) => write_seq(f, vec, "[", "]"),
-            Self::Map(map) => write_seq(
-                f,
-                map.into_iter().map(|(k, v)| format!("{k} {v}")),
-                "[",
-                "]",
-            ),
+            Self::Map(map) => write_seq(f, map.iter().map(|(k, v)| format!("{k} {v}")), "[", "]"),
             Self::Symbol(sym) => write!(f, "{sym}"),
             Self::Keyword(kw) => write!(f, ":{kw}"),
             Self::Number(n) => write!(f, "{n}"),