diff --git a/src/lib.rs b/src/lib.rs
index 8405e1a..4ccbfd9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,6 @@
 use proc_macro::TokenStream;
 use quote::quote;
-use syn::{parse_macro_input, ItemEnum, DeriveInput, Data};
+use syn::{parse_macro_input, ItemEnum, DeriveInput, Fields, Data};
 
 
 #[proc_macro_attribute]