diff --git a/rustler_codegen/src/ex_struct.rs b/rustler_codegen/src/ex_struct.rs
index e051c494..4d720606 100644
--- a/rustler_codegen/src/ex_struct.rs
+++ b/rustler_codegen/src/ex_struct.rs
@@ -53,6 +53,7 @@ pub fn transcoder_decorator(ast: &syn::DeriveInput, add_exception: bool) -> Toke
     };
 
     let gen = quote! {
+        #[allow(non_snake_case)]
         mod #atoms_module_name {
             #atom_defs
         }
diff --git a/rustler_codegen/src/map.rs b/rustler_codegen/src/map.rs
index 9065d132..5cc9e0d3 100644
--- a/rustler_codegen/src/map.rs
+++ b/rustler_codegen/src/map.rs
@@ -37,6 +37,7 @@ pub fn transcoder_decorator(ast: &syn::DeriveInput) -> TokenStream {
     };
 
     let gen = quote! {
+        #[allow(non_snake_case)]
         mod #atoms_module_name {
             #atom_defs
         }
diff --git a/rustler_codegen/src/record.rs b/rustler_codegen/src/record.rs
index b568b78f..6d418e87 100644
--- a/rustler_codegen/src/record.rs
+++ b/rustler_codegen/src/record.rs
@@ -37,6 +37,7 @@ pub fn transcoder_decorator(ast: &syn::DeriveInput) -> TokenStream {
     };
 
     let gen = quote! {
+        #[allow(non_snake_case)]
         mod #atoms_module_name {
             #atom_defs
         }
diff --git a/rustler_codegen/src/tagged_enum.rs b/rustler_codegen/src/tagged_enum.rs
index fe78d331..18678b36 100644
--- a/rustler_codegen/src/tagged_enum.rs
+++ b/rustler_codegen/src/tagged_enum.rs
@@ -71,6 +71,7 @@ pub fn transcoder_decorator(ast: &syn::DeriveInput) -> TokenStream {
     };
 
     let gen = quote! {
+        #[allow(non_snake_case)]
         mod #atoms_module_name {
             #atom_defs
         }
diff --git a/rustler_codegen/src/unit_enum.rs b/rustler_codegen/src/unit_enum.rs
index 9d443ac7..e0e8ff49 100644
--- a/rustler_codegen/src/unit_enum.rs
+++ b/rustler_codegen/src/unit_enum.rs
@@ -55,6 +55,7 @@ pub fn transcoder_decorator(ast: &syn::DeriveInput) -> TokenStream {
     };
 
     let gen = quote! {
+        #[allow(non_snake_case)]
         mod #atoms_module_name {
             #atom_defs
         }