Rename mod 'tokens' to 'token'
diff --git a/src/ident.rs b/src/ident.rs
index 0c51209..7cdaf06 100644
--- a/src/ident.rs
+++ b/src/ident.rs
@@ -109,7 +109,7 @@
         }
 
         if s == "_" {
-            panic!("`_` is not a valid ident; use syn::tokens::Underscore");
+            panic!("`_` is not a valid ident; use syn::token::Underscore");
         }
 
         fn xid_ok(s: &str) -> bool {