diff --git a/codegen/src/rhai_module.rs b/codegen/src/rhai_module.rs
index 68691285..a16eab56 100644
--- a/codegen/src/rhai_module.rs
+++ b/codegen/src/rhai_module.rs
@@ -80,7 +80,7 @@ pub fn generate_body(
             continue;
         }
         let fn_token_name = syn::Ident::new(
-            &format!("{}_token", function.name().to_string()),
+            &format!("{}_token", function.name()),
             function.name().span(),
         );
         let reg_names = function.exported_names();
@@ -262,11 +262,11 @@ pub fn check_rename_collisions(fns: &[ExportedFn]) -> Result<(), syn::Error> {
                 if let Some(other_span) = renames.insert(key, current_span) {
                     let mut err = syn::Error::new(
                         current_span,
-                        format!("duplicate Rhai signature for '{}'", &fn_name),
+                        format!("duplicate Rhai signature for '{}'", fn_name),
                     );
                     err.combine(syn::Error::new(
                         other_span,
-                        format!("duplicated function renamed '{}'", &fn_name),
+                        format!("duplicated function renamed '{}'", fn_name),
                     ));
                     return Err(err);
                 }
@@ -274,13 +274,11 @@ pub fn check_rename_collisions(fns: &[ExportedFn]) -> Result<(), syn::Error> {
         } else {
             let ident = item_fn.name();
             if let Some(other_span) = fn_defs.insert(ident.to_string(), ident.span()) {
-                let mut err = syn::Error::new(
-                    ident.span(),
-                    format!("duplicate function '{}'", ident.to_string()),
-                );
+                let mut err =
+                    syn::Error::new(ident.span(), format!("duplicate function '{}'", ident));
                 err.combine(syn::Error::new(
                     other_span,
-                    format!("duplicated function '{}'", ident.to_string()),
+                    format!("duplicated function '{}'", ident),
                 ));
                 return Err(err);
             }
@@ -288,11 +286,11 @@ pub fn check_rename_collisions(fns: &[ExportedFn]) -> Result<(), syn::Error> {
             if let Some(fn_span) = renames.get(&key) {
                 let mut err = syn::Error::new(
                     ident.span(),
-                    format!("duplicate Rhai signature for '{}'", &ident),
+                    format!("duplicate Rhai signature for '{}'", ident),
                 );
                 err.combine(syn::Error::new(
                     *fn_span,
-                    format!("duplicated function '{}'", &ident),
+                    format!("duplicated function '{}'", ident),
                 ));
                 return Err(err);
             }