diff --git a/src/syn/span.rs b/src/syn/span.rs
index 251b1ce..c77d94e 100644
--- a/src/syn/span.rs
+++ b/src/syn/span.rs
@@ -1,3 +1,5 @@
+#![allow(dead_code)]
+
 use std::fmt::{self, Debug};
 use std::rc::Rc;