diff --git a/crates/lang/codegen/src/generator/events.rs b/crates/lang/codegen/src/generator/events.rs
index b2893f7c424..38212d2cf84 100644
--- a/crates/lang/codegen/src/generator/events.rs
+++ b/crates/lang/codegen/src/generator/events.rs
@@ -88,6 +88,7 @@ impl<'a> Events<'a> {
         let base_event_ident =
             proc_macro2::Ident::new("__ink_EventBase", Span::call_site());
         quote! {
+            #[allow(non_camel_case_types)]
             #[derive(::scale::Encode, ::scale::Decode)]
             pub enum #base_event_ident {
                 #( #event_idents(#event_idents), )*