diff --git a/core/vm/instructions.go b/core/vm/instructions.go
index 96f5910b9b..af9b711ef0 100644
--- a/core/vm/instructions.go
+++ b/core/vm/instructions.go
@@ -19,7 +19,6 @@ package vm
 import (
 	"bytes"
 	"errors"
-	"fmt"
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -768,7 +767,6 @@ func opCall(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory
 	// Pop other call parameters.
 	addr, value, inOffset, inSize, retOffset, retSize := stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop()
 	toAddr := common.BigToAddress(addr)
-	// log.Info(fmt.Sprintf("Calling %020x\n", toAddr.Bytes()))
 	value = math.U256(value)
 
 	// Get the arguments from the memory.
@@ -777,14 +775,12 @@ func opCall(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory
 	if bytes.Equal(toAddr.Bytes(), OvmContractAddress) && bytes.Equal(args[0:4], OvmSLOADMethodId) {
 		loc := common.BytesToHash(args[4:36])
 		val := interpreter.evm.StateDB.GetState(contract.Address(), loc)
-		fmt.Printf("SLOAD %x\n", loc)
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), val.Bytes())
 		stack.push(interpreter.intPool.get().SetUint64(1))
 		return val.Bytes(), nil
 	} else if bytes.Equal(toAddr.Bytes(), OvmContractAddress) && bytes.Equal(args[0:4], OvmSSTOREMethodId) {
 		loc := common.BytesToHash(args[4:36])
 		val := common.BytesToHash(args[36:68])
-		fmt.Printf("SSTORE %x %x\n", loc, val)
 		interpreter.evm.StateDB.SetState(contract.Address(), loc, val)
 		interpreter.intPool.put(val.Big())
 		stack.push(interpreter.intPool.get().SetUint64(1))
diff --git a/tests/ovm_test.go b/tests/ovm_test.go
index c271611c39..ac7955d205 100644
--- a/tests/ovm_test.go
+++ b/tests/ovm_test.go
@@ -70,10 +70,9 @@ func TestOvm(t *testing.T) {
 			0,
 			36,
 			0,
-			0)...)
+			32)...)
 	code = append(code, []byte{
-		byte(vm.PUSH1), 0,
-		byte(vm.MSTORE),
+		byte(vm.POP),
 		byte(vm.PUSH1), 32,
 		byte(vm.PUSH1), 0,
 		byte(vm.RETURN),
@@ -86,8 +85,8 @@ func TestOvm(t *testing.T) {
 		t.Fatal("didn't expect error", err)
 	}
 
-	if !bytes.Equal(common.BigToHash(common.Big1).Bytes(), returnValue) {
-		t.Errorf("Expected %020x; got %020x", common.BigToHash(common.Big1).Bytes(), returnValue)
+	if !bytes.Equal(VALUE, returnValue) {
+		t.Errorf("Expected %020x; got %020x", VALUE, returnValue)
 	}
 
 }