diff --git a/polkadot/node/overseer/overseer-gen/proc-macro/src/impl_channels_out.rs b/polkadot/node/overseer/overseer-gen/proc-macro/src/impl_channels_out.rs
index 08744e6c52..bfe3150f55 100644
--- a/polkadot/node/overseer/overseer-gen/proc-macro/src/impl_channels_out.rs
+++ b/polkadot/node/overseer/overseer-gen/proc-macro/src/impl_channels_out.rs
@@ -56,6 +56,7 @@ pub(crate) fn impl_channels_out_struct(info: &OverseerInfo) -> Result<proc_macro
 			)*
 		}
 
+		#[allow(unreachable_code)] // when no defined messages in enum
 		impl ChannelsOut {
 			/// Send a message via a bounded channel.
 			pub async fn send_and_log_error(