diff --git a/src/generator/codegen_register.rs b/src/generator/codegen_register.rs
index 225b881..0e1d811 100644
--- a/src/generator/codegen_register.rs
+++ b/src/generator/codegen_register.rs
@@ -230,7 +230,7 @@ fn generate_single_field(
         }
         FieldType::CustomValue(values) => {
             let additional =
-                generate_custom_values_mask_enumdef(&base_type, &snake_case_name, values);
+                generate_custom_values_const_enumdef(&base_type, &snake_case_name, values);
             quote! {
                 const #mask_name: #base_type = #mask_val;
                 #additional
@@ -317,12 +317,12 @@ fn custom_value_const_name(field_name: &Ident, value_name: &str) -> Ident {
 }
 
 /// Generate const var and value enum definition.
-fn generate_custom_values_mask_enumdef(
+fn generate_custom_values_const_enumdef(
     base_type: &Ident,
     field_name: &Ident,
     values: &[Value],
 ) -> TokenStream {
-    let masks = values.iter().map(|value| {
+    let consts = values.iter().map(|value| {
         let const_name = custom_value_const_name(field_name, &value.name);
         let val = value.data;
         quote! {
@@ -341,7 +341,7 @@ fn generate_custom_values_mask_enumdef(
         util::parse_to_ident(&field_name.to_string().to_upper_camel_case()).unwrap();
 
     quote! {
-        #(#masks)*
+        #(#consts)*
         pub enum #value_enum_name {
             #(#variants),*
         }