diff --git a/src/generator.rs b/src/generator.rs
index 4e6bc52..8820846 100644
--- a/src/generator.rs
+++ b/src/generator.rs
@@ -15,7 +15,6 @@ use crate::{
     types::{Block, Module, ModuleBlockElements, Register},
 };
 use heck::{ToSnakeCase, ToUpperCamelCase};
-use itertools::Itertools;
 use proc_macro2::TokenStream;
 use quote::quote;
 use thiserror::Error;
@@ -201,10 +200,8 @@ impl CodeGen for Block {
         parent_path: Option<path::PathBuf>,
         mut files: HashMap<path::PathBuf, proc_macro2::TokenStream>,
     ) -> Result<HashMap<path::PathBuf, proc_macro2::TokenStream>, CodeGenError> {
-        let parent_name =
-            parent_name.ok_or_else(|| CodeGenError::ParentMissing { module: "Block" })?;
-        let parent_path =
-            parent_path.ok_or_else(|| CodeGenError::ParentMissing { module: "Block" })?;
+        let parent_name = parent_name.ok_or(CodeGenError::ParentMissing { module: "Block" })?;
+        let parent_path = parent_path.ok_or(CodeGenError::ParentMissing { module: "Block" })?;
 
         let snake_case_name = util::parse_to_ident(&self.name.to_snake_case())?;
         let upper_camel_name = util::parse_to_ident(&self.name.to_upper_camel_case())?;
@@ -324,10 +321,8 @@ impl CodeGen for Register {
         parent_path: Option<path::PathBuf>,
         mut files: HashMap<path::PathBuf, proc_macro2::TokenStream>,
     ) -> Result<HashMap<path::PathBuf, proc_macro2::TokenStream>, CodeGenError> {
-        let parent_name =
-            parent_name.ok_or_else(|| CodeGenError::ParentMissing { module: "Block" })?;
-        let parent_path =
-            parent_path.ok_or_else(|| CodeGenError::ParentMissing { module: "Block" })?;
+        let parent_name = parent_name.ok_or(CodeGenError::ParentMissing { module: "Block" })?;
+        let parent_path = parent_path.ok_or(CodeGenError::ParentMissing { module: "Block" })?;
 
         let snake_case_name = util::parse_to_ident(&self.name.to_snake_case())?;
         let upper_camel_name = util::parse_to_ident(&self.name.to_upper_camel_case())?;