diff --git a/rpc/src/v1/tests/eth.rs b/rpc/src/v1/tests/eth.rs
index 1ff5e1771..b31cc8bdf 100644
--- a/rpc/src/v1/tests/eth.rs
+++ b/rpc/src/v1/tests/eth.rs
@@ -50,7 +50,7 @@ fn sync_provider() -> Arc<TestSyncProvider> {
 	}))
 }
 
-fn miner_service(spec: &Spec) -> Arc<Miner> {
+fn miner_service(spec: &Spec, accounts: Arc<AccountProvider>) -> Arc<Miner> {
 	Miner::new(
 		MinerOptions {
 			new_work_notify: vec![],
@@ -69,6 +69,7 @@ fn miner_service(spec: &Spec) -> Arc<Miner> {
 		},
 		GasPricer::new_fixed(20_000_000_000u64.into()),
 		&spec,
+		Some(accounts),
 	)
 }
 
@@ -116,7 +117,7 @@ impl EthTester {
 		let dir = RandomTempPath::new();
 		let account_provider = account_provider();
 		spec.engine.register_account_provider(account_provider.clone());
-		let miner_service = miner_service(&spec);
+		let miner_service = miner_service(&spec, account_provider.clone());
 		let snapshot_service = snapshot_service();
 
 		let db_config = ::util::kvdb::DatabaseConfig::with_columns(::ethcore::db::NUM_COLUMNS);
diff --git a/rpc/src/v1/tests/helpers/miner_service.rs b/rpc/src/v1/tests/helpers/miner_service.rs
index 87efd2425..68caa137b 100644
--- a/rpc/src/v1/tests/helpers/miner_service.rs
+++ b/rpc/src/v1/tests/helpers/miner_service.rs
@@ -41,10 +41,11 @@ pub struct TestMinerService {
 	pub pending_receipts: Mutex<BTreeMap<H256, Receipt>>,
 	/// Last nonces.
 	pub last_nonces: RwLock<HashMap<Address, U256>>,
+	/// Password held by Engine.
+	pub password: RwLock<String>,
 
 	min_gas_price: RwLock<U256>,
 	gas_range_target: RwLock<(U256, U256)>,
-	password: RwLock<String>,
 	author: RwLock<Address>,
 	extra_data: RwLock<Bytes>,
 	limit: RwLock<usize>,
diff --git a/rpc/src/v1/tests/mocked/parity_set.rs b/rpc/src/v1/tests/mocked/parity_set.rs
index 3202374a7..835dc0abe 100644
--- a/rpc/src/v1/tests/mocked/parity_set.rs
+++ b/rpc/src/v1/tests/mocked/parity_set.rs
@@ -106,6 +106,23 @@ fn rpc_parity_set_author() {
 	assert_eq!(miner.author(), Address::from_str("cd1722f3947def4cf144679da39c4c32bdc35681").unwrap());
 }
 
+#[test]
+fn rpc_parity_set_sealer() {
+	let miner = miner_service();
+	let client = client_service();
+	let network = network_service();
+	let io = IoHandler::new();
+	io.add_delegate(parity_set_client(&client, &miner, &network).to_delegate());
+
+	let request = r#"{"jsonrpc": "2.0", "method": "parity_setSealer", "params":["0xcd1722f3947def4cf144679da39c4c32bdc35681", "password"], "id": 1}"#;
+	let response = r#"{"jsonrpc":"2.0","result":true,"id":1}"#;
+
+	assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
+	assert_eq!(miner.author(), Address::from_str("cd1722f3947def4cf144679da39c4c32bdc35681").unwrap());
+	assert_eq!(*miner.password.read(), "password".to_string());
+}
+
+
 #[test]
 fn rpc_parity_set_transactions_limit() {
 	let miner = miner_service();