1 files changed, 1 insertions, 1 deletions
diff --git a/src/sexp/mod.rs b/src/sexp/mod.rs
index f6c50d7..71e62e9 100644
--- a/src/sexp/mod.rs
+++ b/src/sexp/mod.rs
@@ -39,7 +39,7 @@ use SLeaf::*;
 impl SExp {
     pub fn is_value(&self) -> bool {
         match self {
-            SCons(a, _) => **a == Atom(Quote),
+            SCons(a, b) => **a == Atom(Quote) && b.consists_of_values(),
             Atom(Var(_)) => false,
             Atom(_) => true,
         }