diff --git a/ethcore/light/src/client/header_chain.rs b/ethcore/light/src/client/header_chain.rs
index 615ffd89b..fe3c86aad 100644
--- a/ethcore/light/src/client/header_chain.rs
+++ b/ethcore/light/src/client/header_chain.rs
@@ -517,18 +517,6 @@ mod tests {
 	use time::Duration;
 	use util::Mutex;
 
-  	#[test]
-  	fn basic_chain_with_cache() {
-    	let spec = Spec::new_test();
-    	let genesis_header = spec.genesis_header();
-		let db = make_db();
-
-		let cache = Arc::new(Mutex::new(Cache::new(Default::default(), Duration::hours(6))));
-		
-		let chain = HeaderChain::new(db.clone(), None, &::rlp::encode(&genesis_header), cache);
-		
-  	}
-
 	fn make_db() -> Arc<::util::KeyValueDB> {
 		Arc::new(::util::kvdb::in_memory(0))
 	}
diff --git a/sync/src/light_sync/tests/test_net.rs b/sync/src/light_sync/tests/test_net.rs
index 2319e8d35..f84a37018 100644
--- a/sync/src/light_sync/tests/test_net.rs
+++ b/sync/src/light_sync/tests/test_net.rs
@@ -207,7 +207,8 @@ impl TestNet<Peer> {
 	pub fn light(n_light: usize, n_full: usize) -> Self {
 		let mut peers = Vec::with_capacity(n_light + n_full);
 		for _ in 0..n_light {
-			let client = LightClient::in_memory(Default::default(), &Spec::new_test(), IoChannel::disconnected());
+			let cache = Arc::new(Mutex::new(Cache::new(Default::default(), Duration::hours(6))));
+			let client = LightClient::in_memory(Default::default(), &Spec::new_test(), IoChannel::disconnected(), cache);
 			peers.push(Arc::new(Peer::new_light(Arc::new(client))))
 		}