Access single span via the Deref impl
diff --git a/src/token.rs b/src/token.rs
index a636b16..04d6967 100644
--- a/src/token.rs
+++ b/src/token.rs
@@ -503,7 +503,7 @@
 #[cfg(feature = "printing")]
 impl ToTokens for Underscore {
     fn to_tokens(&self, tokens: &mut TokenStream) {
-        tokens.append(Ident::new("_", self.spans[0]));
+        tokens.append(Ident::new("_", self.span));
     }
 }