diff --git a/src/interpreter/value/mod.rs b/src/interpreter/value/mod.rs
index 9224fa5..c3ef5ea 100644
--- a/src/interpreter/value/mod.rs
+++ b/src/interpreter/value/mod.rs
@@ -44,6 +44,7 @@ impl<'s> From<Expr<'s>> for Value<'s> {
                 Self::Symbol("quote".into()),
                 Self::DotPair(Rc::new(DotPair((*e).into(), Self::Nil))),
             ))),
+            Expr::Symbol("nil") => Self::Nil,
             Expr::Symbol(s) => Self::Symbol(s.into()),
             Expr::Keyword(s) => Self::Keyword(s.into()),
             Expr::Number(n) => Self::Number(n),