diff --git a/json/src/bytes.rs b/json/src/bytes.rs
index 812b109f7..18dc73844 100644
--- a/json/src/bytes.rs
+++ b/json/src/bytes.rs
@@ -19,6 +19,7 @@
 use rustc_serialize::hex::FromHex;
 use serde::{Deserialize, Deserializer, Error};
 use serde::de::Visitor;
+use std::ops::Deref;
 
 /// Lenient bytes json deserialization for test json files.
 #[derive(Default, Debug, PartialEq, Clone)]
@@ -30,6 +31,14 @@ impl Into<Vec<u8>> for Bytes {
 	}
 }
 
+impl Deref for Bytes {
+	type Target = Vec<u8>;
+
+	fn deref(&self) -> &Vec<u8> {
+		&self.0
+	}
+}
+
 impl Deserialize for Bytes {
 	fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
 		where D: Deserializer {
diff --git a/json/src/vm/call.rs b/json/src/vm/call.rs
index 2fe6265aa..1947fd25c 100644
--- a/json/src/vm/call.rs
+++ b/json/src/vm/call.rs
@@ -39,16 +39,47 @@ pub struct Call {
 mod tests {
 	use serde_json;
 	use vm::Call;
+	use util::numbers::U256;
+	use uint::Uint;
+	use util::hash::Address as Hash160;
+	use hash::Address;
+	use maybe::MaybeEmpty;
+	use std::str::FromStr;
 
 	#[test]
-	fn call_deserialization() {
+	fn call_deserialization_empty_dest() {
 		let s = r#"{
 			"data" : "0x1111222233334444555566667777888899990000aaaabbbbccccddddeeeeffff",
 			"destination" : "",
 			"gasLimit" : "0x1748766aa5",
 			"value" : "0x00"
 		}"#;
-		let _deserialized: Call = serde_json::from_str(s).unwrap();
-		// TODO: validate all fields
+		let call: Call = serde_json::from_str(s).unwrap();
+
+		assert_eq!(&call.data[..],
+			&[0x11, 0x11, 0x22, 0x22, 0x33, 0x33, 0x44, 0x44, 0x55, 0x55, 0x66, 0x66, 0x77, 0x77,
+			  0x88, 0x88, 0x99, 0x99, 0x00, 0x00, 0xaa, 0xaa, 0xbb, 0xbb, 0xcc, 0xcc, 0xdd, 0xdd,
+			  0xee, 0xee, 0xff, 0xff]);
+
+		assert_eq!(call.destination, MaybeEmpty::None);
+		assert_eq!(call.gas_limit, Uint(U256::from(0x1748766aa5u64)));
+		assert_eq!(call.value, Uint(U256::from(0)));
+	}
+
+	#[test]
+	fn call_deserialization_full_dest() {
+		let s = r#"{
+			"data" : "0x1234",
+			"destination" : "5a39ed1020c04d4d84539975b893a4e7c53eab6c",
+			"gasLimit" : "0x1748766aa5",
+			"value" : "0x00"
+		}"#;
+
+		let call: Call = serde_json::from_str(s).unwrap();
+
+		assert_eq!(&call.data[..], &[0x12, 0x34]);
+		assert_eq!(call.destination, MaybeEmpty::Some(Address(Hash160::from_str("5a39ed1020c04d4d84539975b893a4e7c53eab6c").unwrap())));
+		assert_eq!(call.gas_limit, Uint(U256::from(0x1748766aa5u64)));
+		assert_eq!(call.value, Uint(U256::from(0)));
 	}
 }
diff --git a/rpc/src/v1/impls/ethcore.rs b/rpc/src/v1/impls/ethcore.rs
index de458a53f..f5d6f1fda 100644
--- a/rpc/src/v1/impls/ethcore.rs
+++ b/rpc/src/v1/impls/ethcore.rs
@@ -22,7 +22,7 @@ use std::sync::{Arc, Weak};
 use std::ops::Deref;
 use std::collections::BTreeMap;
 use jsonrpc_core::*;
-use ethminer::{MinerService};
+use ethminer::MinerService;
 use v1::traits::Ethcore;
 use v1::types::Bytes;