diff --git a/relay/kusama/src/lib.rs b/relay/kusama/src/lib.rs
index 2ec8a49ff0..6858d98260 100644
--- a/relay/kusama/src/lib.rs
+++ b/relay/kusama/src/lib.rs
@@ -1910,7 +1910,7 @@ sp_api::impl_runtime_apis! {
 		}
 	}
 
-		#[api_version(7)]
+	#[api_version(7)]
 	impl primitives::runtime_api::ParachainHost<Block, Hash, BlockNumber> for Runtime {
 		fn validators() -> Vec<ValidatorId> {
 			parachains_runtime_api_impl::validators::<Runtime>()