diff --git a/rtic/macros/src/codegen/util.rs b/rtic/macros/src/codegen/util.rs
index e121487c70..d0c8cc0e44 100644
--- a/rtic/macros/src/codegen/util.rs
+++ b/rtic/macros/src/codegen/util.rs
@@ -123,7 +123,7 @@ pub fn regroup_inputs(
         let mut tys = vec![];
 
         for (i, input) in inputs.iter().enumerate() {
-            let i = Ident::new(&format!("_{}", i), Span::call_site());
+            let i = Ident::new(&format!("_{i}"), Span::call_site());
             let ty = &input.ty;
 
             args.push(quote!(#i: #ty));
diff --git a/rtic/macros/src/lib.rs b/rtic/macros/src/lib.rs
index a8422d0927..92d7cddd99 100644
--- a/rtic/macros/src/lib.rs
+++ b/rtic/macros/src/lib.rs
@@ -2,7 +2,6 @@
     html_logo_url = "https://raw.githubusercontent.com/rtic-rs/rtic/master/book/en/src/RTIC.svg",
     html_favicon_url = "https://raw.githubusercontent.com/rtic-rs/rtic/master/book/en/src/RTIC.svg"
 )]
-
 //deny_warnings_placeholder_for_ci
 
 use proc_macro::TokenStream;