diff --git a/ethcore/src/blockchain.rs b/ethcore/src/blockchain.rs
index f7c45d94e..764b76588 100644
--- a/ethcore/src/blockchain.rs
+++ b/ethcore/src/blockchain.rs
@@ -38,7 +38,7 @@ pub enum TransactionId {
 	Hash(H256),
 	/// Block id and transaction index within this block.
 	/// Querying by block position is always faster.
-	BlockPosition(BlockId, usize)
+	Location(BlockId, usize)
 }
 
 /// Represents a tree route between `from` block and `to` block:
@@ -132,11 +132,11 @@ pub trait BlockProvider {
 	fn transaction(&self, id: TransactionId) -> Option<LocalizedTransaction> {
 		match id {
 			TransactionId::Hash(ref hash) => self.transaction_address(hash),
-			TransactionId::BlockPosition(BlockId::Hash(hash), index) => Some(TransactionAddress {
+			TransactionId::Location(BlockId::Hash(hash), index) => Some(TransactionAddress {
 				block_hash: hash,
 				index: index
 			}),
-			TransactionId::BlockPosition(BlockId::Number(number), index) => self.block_hash(number).map(|hash| TransactionAddress {
+			TransactionId::Location(BlockId::Number(number), index) => self.block_hash(number).map(|hash| TransactionAddress {
 				block_hash: hash,
 				index: index
 			})
diff --git a/rpc/src/v1/impls/eth.rs b/rpc/src/v1/impls/eth.rs
index 32c1919bf..5d60b40a6 100644
--- a/rpc/src/v1/impls/eth.rs
+++ b/rpc/src/v1/impls/eth.rs
@@ -166,7 +166,7 @@ impl Eth for EthClient {
 
 	fn transaction_by_block_hash_and_index(&self, params: Params) -> Result<Value, Error> {
 		from_params::<(H256, Index)>(params)
-			.and_then(|(hash, index)| match self.client.transaction(TransactionId::BlockPosition(BlockId::Hash(hash), index.value())) {
+			.and_then(|(hash, index)| match self.client.transaction(TransactionId::Location(BlockId::Hash(hash), index.value())) {
 				Some(t) => to_value(&Transaction::from(t)),
 				None => Ok(Value::Null)
 			})