diff --git a/runtime/laos/src/lib.rs b/runtime/laos/src/lib.rs
index f0c116e6..e95523c0 100644
--- a/runtime/laos/src/lib.rs
+++ b/runtime/laos/src/lib.rs
@@ -496,6 +496,10 @@ impl_runtime_apis! {
 				pallet_ethereum::CurrentTransactionStatuses::<Runtime>::get()
 			)
 		}
+
+		fn initialize_pending_block(header: &<Block as BlockT>::Header) {
+			Executive::initialize_block(header);
+		}
 	}
 
 	impl fp_rpc::ConvertTransactionRuntimeApi<Block> for Runtime {