diff --git a/codegen/src/api/mod.rs b/codegen/src/api/mod.rs
index 2fed7a59ea..6f93a278b2 100644
--- a/codegen/src/api/mod.rs
+++ b/codegen/src/api/mod.rs
@@ -81,7 +81,7 @@ impl RuntimeGenerator {
 
         Ok(quote! {
             #( #item_mod_attrs )*
-            #[allow(dead_code, unused_imports, non_camel_case_types)]
+            #[allow(dead_code, unused_imports, non_camel_case_types, unreachable_patterns)]
             #[allow(clippy::all)]
             #[allow(rustdoc::broken_intra_doc_links)]
             pub mod #mod_ident {
@@ -233,7 +233,7 @@ impl RuntimeGenerator {
 
         Ok(quote! {
             #( #item_mod_attrs )*
-            #[allow(dead_code, unused_imports, non_camel_case_types)]
+            #[allow(dead_code, unused_imports, non_camel_case_types, unreachable_patterns)]
             #[allow(clippy::all)]
             #[allow(rustdoc::broken_intra_doc_links)]
             pub mod #mod_ident {