diff --git a/crates/relax-macros/src/lib.rs b/crates/relax-macros/src/lib.rs
index bc22927..7ffd119 100644
--- a/crates/relax-macros/src/lib.rs
+++ b/crates/relax-macros/src/lib.rs
@@ -78,6 +78,7 @@ fn derive_impl(input: syn::DeriveInput) -> syn::Result<TokenStream> {
         // * ident + punct
         // * ident + group + punct
         // * ident (the last one)
+        // * ident + group (the last one)
 
         let ident: syn::Ident = syn::parse2(token.into_token_stream())?;
 
@@ -104,6 +105,12 @@ fn derive_impl(input: syn::DeriveInput) -> syn::Result<TokenStream> {
         };
 
         extra_attrs.push(quote! { #[#ident #group] });
+
+        // if the second item was group, we may need to consume the next punct
+        // but we may have ran out of tokens at this point
+        if relax_attr_tokens.next().is_none() {
+            break;
+        }
     }
 
     let fields = match &input.data {