1 files changed, 2 insertions, 0 deletions
diff --git a/src/sexp/mod.rs b/src/sexp/mod.rs
index dee672f..020ba63 100644
--- a/src/sexp/mod.rs
+++ b/src/sexp/mod.rs
@@ -17,6 +17,8 @@ pub enum SLeaf {
     Div,
     Int(i32),
     Var(String),
+    Quote,
+    Nil,
 }
 
 /// An S-Expression; the defining structure of the language.